What it also helps is avoiding backlash from teammates, which happened way more often than smurfs.
such as, “hey, you got 500h in soldier but you are playing widow, go play widow”
Or “Go mercy if you got 400h in mercy but you are on zen”
This caused another problem of people would stalk the enemy team’s best stuff, and counter pick accordingly.
If you are a DOOM main and got little time on rest of the stuff, one would start with Orisa and other counters at once, hard shutting the person down.
Or play dva and your tank is forced to play zarya, which isnt their strong character at all.
Which was why profile privacy options were added in.
More often than now, if they are that hard diffing you, they arent same rank as you, they are merely passing through that rank.
A new account will still need a few games to rank into the rank they belong, until then, they will be playing around in your rank until the system ranks them up.
What helps mentally is another step ahead of this - I am doing my best, still not working out, they are just stronger, and you later review what you can do.