Unlike other cases where censor doesn't work, my problem is axactly the opposite

It seems that there is a word censor going on (words and whole parts of sentances are substituted by *****, so it makes them uncomprehensable) only in certain topics.
There aren't any swear words at all added in my database and the switch in user profile is se to off, though word censor seems to appear. What is more strange, only in certain topics...
Does anyone have a clue how to solve this, or how to locate the problem? I'll appreciate every answer to this post.
PS: I use Icy Phoenix 1.1.0.15