Of course, few years ago i was betting on hokey - i didn't know back than anything about hokey and also i didn't watched hokey games. But i know how to read statistics and i was very accurate and made some extra cash. Just chose game and bet on statistically better team.
You are really lucky to get some wins to wage on a sport you have no clue but i would not dare to wage a bet in a sport i am not interested because statistics really cannot showcase the present form and situation of the team.
You are right but betting on a sport that we don't know is like betting very randomly and sometimes odds are wrong or say ill mannered and you might loose. I though bet on sports that I don't know how they work and what are the rules but that I only do when some predictors ( whom i trust ) give picks from those sports. I never make bets myself on such games.