Hi TI. I'm new to this. I don't know where is the right place to ask these questions. I'll just ask here.

What is Tree ban ? How does that happen and how to protect against it ?

What to check in proofs ( ratio/speedtest/seedbox) ? Here in GA I got invite to IPT. I'd like to give back something to TI. I want to do giveaway , don't know what to check for.