Just realized that i got negative trust for some reason. I don't know the cause.
It seems fairly obvious why they tagged you:
Promotion of a scam project (Ethereum Classic Vision in this case) despite warning
It also seems that they have changed their feedback to neutral. However, I don't see how you're linked to the Ethereum Classic Vision project at all?
You don't appear to have posted in the thread that they referenced in their trust...
So, either they've tagged the wrong user... or they have included the wrong reference link on your trust rating.