Stupid draw (-1 points for me)

Your opponent wasn't cowardly. Perpetual check (three-position repetition) is part of chess. If you want to win, one of the things you must do is prevent the possibility of perpetual check. If you don't, you have only yourself to blame.

I agree with the O.P.

It stupid to take the pawn at move 43 and allow a perpetual check, instead of playing 43.Qxf5+ Kxf5 44.Kf1, when even a small kid would win within a few moves as white.

This is possibly the most common perpetual pattern. Worth remembering OP.

Ali, were you really scared of that passed pawn :P You could have traded the queens and the end-game was an easy win.

Yes, you should acknowledge he/she for teaching you such a valuable lesson.

Someone started abusing me because I couldn't win and only draw through perpetual check. As I see it, half a point is better than nothing. Some people act like spoilt brats sometimes.

I wonder if it ever happened in real chess game at tournaments. I guess black would get slap in the face.

Sure, try it. Lots of fun assured.

Ali, why did you not trade the queens? Were you scared of a pawn end-game? 

So you all saying if i cant win i should do perpetual check and just draw every single game? Against Kasparov too?

If you can, sure. Kasparov, Carlsen whoever.

Or simply resign not to play like pu**y!

Ali_Makaveli: See this Karpov vs Kasparov game - Karpov was ahead. Kasparov sacrificed a bishop and a rook to create a perpetual check position:

Ali_Makaveli: Why would anyone resign in a situation where you are unable to force a win?

Maybe chess isn't for you ?

 It happens all the time in tournaments. It's part of the game. You had an easy win and you blew it by not trading queens. 

I think I have seen this before: if I don't win, I can always find something/someone to blame...

It won't happen anyway.

But it can end with perpetual mate- no?

Yes, all the time. It's common knowledge this is a drawing resource, and experienced players both look for it and guard against it.