Press Ctrl+Z in-game.
Usually, no. Use the in-game report flow first.
Use the Discord suggestions channel for:
Yes.
Use:
/character-auctionsUse:
/shopUse:
/onlineUse:
/highscoresUse:
/guildsYes. At a loot buyer, sell all loot in pouch sells the loot inside the pouch.
The official wiki is:
https://wiki.morgarot.com/