I want to start by clarifying this:
Alt accounts (people who try to get to their own rank)
Smurf accounts (people who throw games to stay in a lower rank)
I also kindly ask you to please read everything even tho there’s a lot to go through
Being a streamer is a job (haha funny ikr?). Doing challenges is fun for both the streamer and the viewer. If you don’t enjoy watching streams keep in mind other people do, and vice versa.
The chances for you to get a streamer/alt account in your games are very, very low. Even if you try to stream snipe them, you will probably not get to play with them. You can’t blame them for being stuck in your rank or for ruining your games since you probably never got to play with a streamer in your entire life. If you did, then lucky/unlucky for you.
I don’t know if you guys are aware of the recent events but there are not many OW streamers right now. I think there are like 3 who do these challenges these days. Compare that to the number of smurfs you get in our games.
There are GM players (non streamers) who do these challenges as well. They are still much less than the amount of smurfs in the low ranks and they also don’t throw games on purpose.
Streamers/alt accounts are people too. They are not perfect. They don’t throw. But they can still lose.
Not everyone is like ML7. Some streamers do it only for fun because they are bored or for their viewers, not only for educational purposes. (I saw many people here who want to defend him but the best way to do so is to advise them to try and watch his stream/youtube. Because, I assure you, they never did.)
Being a t500 on one role doesn’t mean they are t500 on all roles. And after role queue came out we could clearly see a t500 dps doesn’t equal a t500 tank for example. You can go see on the competitive leaderboard tons of examples.
Streamers/alt accounts do these challenges in order to learn a hero as well. Since they are bad at the respective hero from the beginning, it’s not really possible for them to carry their team. Having good game sense and good aim doesn’t equal carry if you don’t even know how to play that hero.
Streamers/ alt accounts are people too! And so like every person in the world, they can be good people or not so good people. There are some streamers/alt account who would even go for a bronze to gm challenges and it’s not necessarily to stomp the low ranks, but mostly because they are bored. It’s not okay either way.
There are toxic streamers as well. A I said, people are different. We can’t do anything about it.
Usually streamers/alt accounts level up their own new accounts. ML7 for example streamed himself doing it and you could have also seen that he lost games even if he tried to win.
There are people who would rather buy 25 lv fresh accounts. It doesn’t really hurt anybody but I don’t think it’s an okay thing to do anyway.
There are people who would buy bronze accounts… This is really bad because getting bronze in the first place means you have to throw every single game you have. The person who deranked the account and also the buyer of the account should get perma banned. Streamers wouldn’t do this because they can easily get in trouble. Since everything is streamed, the proof can be found easily.
Overwatch is a team game. Even if you have a gm alt in your plat game, you can still lose.
If you get an alt account in your team you may earn 20 sr. If you get an alt account in the enemy team you may lose 20 sr. But nothing is 100% sure. Either way, after that one game you will most probably never get to see that alt account ever again.
Streamers/ alt accounts usually get Platinum after placements. And they can get to Diamond even in less than 5 games if they don’t lose any game. If you are bellow Platinum you don’t have to worry about getting them in your games.
Streamers/ alt accounts may get gold but NEVER bellow gold. Even if they get gold they get out of there in 1-2 games.
Streamers/ alt account may get gold or silver if they are bad. You can take a one trick as example. Maybe that person cannot play anything else than that hero. So if they make an account and play other heroes, it may be difficult for them to climb. Take a Sym one-trick for example (no offense, I don’t have any problem with Sym or Sym one-tricks), this person is GM with Sym but Platinum with Soldier. It’s very possible.
People in GM/T500 are not gods.
Streamers/alt accounts are not the reason you are stuck in your rank.
Everybody has the right to spend their money and time however they want. Especially since it’s the quarantine and stuff. But not by throwing, trolling or smurfing. That’s bad. Report them. 
I want to end this by stating that I do watch some Overwatch streamers, seeing people who are good at the game make me want to play even more!
I watched Kabaji’s Unranked to GM Tracer only and, for someone like me who was always scared to play dps, it made me want to learn Tracer. I love Tracer so much right now. I’m just a gold dps but I learned so much from his streams. And not only about Tracer but the game itself, about game sense etc. From ML7 as well, I learned so much about Ana. She truly is an amazing hero.I totally understand that many people prefer to play instead of watching somebody else playing it. I actually was the same long time ago but one day I just wanted to see what’s with this twitch thing and I got hooked. But I didn’t enjoy watching just anybody play but watching someone I felt close too, someone positive and fun.
I also kindly advise you to not judge a person by it’s “job”. People are different, streamers are different. Try and watch their streams/youtube before deciding if they are stomping the low ranks, if they are toxic etc. Please just be open about it. Don’t want to try and watch them anyway? That’s fine too. Still, try not to judge them, it’s not nice. (It’s like saying a cook is fat because he cooks everyday…
) We all are people in the world so let’s respect each other~
