I've started making some basic maps, and I'd like to participate in playtesting events. Is there a place that lists all the times and servers that it will happen? Thanks.
If you join the discord (link on the main page) there are impromptu tests held regularly that are announced. There's no set time that these happen, and they either happen on the US or EU server.
There's now a verification system on the TF2Maps discord and it requires you to link your steam account to your discord's before you are allowed to see and post in the discord channels. If you have already done that just wait for a while before you get verified.
If this is your first time logging in after the migration (Feb 8, 2022), you must reset your password to log in. Follow this guide if you're having trouble