Wow, things really picked up at the end!)))

Okay, I'll answer all the questions in order:
1) You can participate without a microphone - I'll comment on it later myself (the main thing is a full recording of the game itself).
2) Wlk777 did indeed submit an application to participate through the player Yarik1987. We are in contact with him through Yarik. Before the start of the tournament, I will contact everyone - if he confirms his participation again, then he will definitely be there. He won't be streaming, but he will be recording his game at home using Bandicam or something similar.
3) How to choose a castle on the mirror map? I think there's only one option - full random (that's why repetitions are allowed on it)...
4) I also support banning the selection of starting heroes on Skirmish (I'll make changes to the header now).