OK guys, i cleaned this damn site. believe it or not, i deleted 400 spam bots :FFFFFFFFf and more than 200 non active members...
i thought they are normal ppl, well if some of them was not bot, then they will re-register, but since they only had 0 posts, it does not matter.
we had 780 members, now we have ca. 200
but at least its not full of shits. i got many spams through the contact menu.
and damn, i just deleted them, and they started to come back, i thnk the engine is fucked up, no matter what i set in registration settings, they come back without anything. we have image code, and also tried that only admin can approve reg. but nothing, they are coming back like ants.