Hi all
so far the captcha has been shown only to anonymous users when they tried to add URL. But the amount of edits inserting random letters is still increasing and I don't see another option than to block this way all anonymous edits. Logged in users are not affected by this change.
If you have any strong arguments against this, please share. But I feel that time of three people currently managing spam on wiki is more valuable than being wasted on reverting all these ricroldar, domtrocbor and trgetbovarc changes :-).