If he scores constantly or is on target why not? but of course be sensible and unselfish, unless your opponent keeper is doing tai chi at the goal post I doubt you're gonna score all the time even if Its on target, so most likely yes people will get annoyed.

I don't know bout you but I actually think.. a good physical presence and nice simple passes makes you a great futsal player.

There is one thing which I get super annoyed when playing futsal tho, and I think its a simple tip for defending but often people don't do it.

Alot of people during corners don't watch the opposing players, but instead pick a spot, stand there hoping the ball will come to them even tho they've got opposing players ready to run in or even next to them.

The other one is people who stand in open spaces when the opponent keeper has the ball instead of marking down the free players

But that said.. I am sometimes guilty of the stated mistakes above
Have I been mistaken in those situations?