Hi
I had +11 green trust a day before and now its only +6. I saw in my profile and people who used to be under "trusted feedback" are now under untrusted!

Why?
Looking through your feedbacks, I see cooldgamer is in untrusted feedback. He was removed from th etrust list by whoever trusted him earlier resulting his feedback becoming untrusted in default list.
I am not sure whose trust list cooldgamer was on, however I know that escrow.ms cleaned up his trust list today - I know that devthedev and cronicsky were both removed from his list today (possibly among others).
The first thing any newbie should do is remove "DefaultTrust" from their trust list. Why it is in there in the first place is a matter of speculation, but the fact is, a good portion of the people in "DefaultTrust" can't be trusted nor should you trust them, since you don't know them.
Remove everyone from your trust list and start building your own trust list of people you actually trust. Don't trust the site op and moderators, they are not here to help you or protect you from scammers or anything like that... that is your job. Don't blindly trust, remove DefaultTrust
Now how exactly is a newbie suppose to know who he can and cannot trust to give proper trust ratings? I think it is safe to say that you are giving very bad advice