And if nothing happens who knows in X years you end up in trouble. This is the problem with BTC, its not fungible. As far as I know, promoting on sig campaigns is legal since it's just marketing, but not sure when the promotion is a mixer. I wonder how people are using their money there. From what I've seen they do nothing with it but hoard it. As far as P2P, I don't trust people in real life, you never know who you are meeting with, and Bisq doesn't solve anything as far as fiat transactions, you are risking it the moment you do a bank wire.
This depends on the level of investigation that may take place with you. If you were a "good citizen" and prepared your tax file, it is unusual for the authorities to conduct a deep analysis of the chain to find out where your money sources are. Also, the profits from signature campaigns are less than $1,2000 annually, which is a small amount for anyone who wants to do an activity. Undefined.
Personally, I advise you to convert your currencies into cash and buy gift cards from the nearest store, or stop using Bitcoin until there is a clear legal framework for it (you will not have to pay taxes, and the law does not require a retroactive effect.)