The fix submitted before isn't reliable. That piece of magic in .vimrc does the job:
let loaded_matchparen = 1
It tells some plug-in/script/whatever that it has already did the job. If you put that in
.vimrc - it would think that way always and would not load anymore. Nice.
P.S. The Tip was found here
:help pi_paren.txt. It would be all really nice if computers had a special interface to read my mind - and tell me how the devels named particular feature. That way I will not need to waste weeks to find the corresponding help entry.