You need to raise your trust level. I think trust level 2 gains access to linking on trusted sites like Battle.Net, YouTube or Twitch, while trust level 3 allows you to link anywhere.
However, as a workaround, if you’re at trust level 1 you can use code lines to post links without it breaking up. See previous paragraph for an example.
Yap, that’s it ^^
Just a side note, according to stickied post by WyomingMist, we won’t be to be able to attain Trust level 2 for 2 more weeks as new forum was rolled out yesterday. One of conditions is visiting forum for 15 days (not necessarily in a row).
As for seeing trust level, there is a method which involves checking a JSON file you receive or something like that, but I cannot find the relevant post with that info. I know I saw it somewhere yesterday, though.
Go to your activity page by clicking your avatar in the top right and then your name. The URL will look like this: https://eu.forums.blizzard.com/en/wow/u/name-realm/activity
simply change /activity to .json.
That’s normally how that .json page looks. It will list all the TLs you have, so the highest one is your current level. For example, mine will display all four: 0, 1, 2 and 3.
It’s cool though. Trust should be earned. It’s a brand new day, everyone. Enjoy the new forums! I almost wish I could post all the cool things I’ve found about them such as being able to site hop around with a current post your editing, HTML coding, and how you can click the date info on the scrolly bar to jump. If I clicked May 31, I’d scroll to the top of this thread, same as 4h ago.
Neat trick found! I accidently deleted this post, but there’s an undo button!