There are times where I make predictions even without having to placing a bet on the predictions, and most often this predictions turns out exactly the way I predicted it meanwhile when I place a bet on it, it goes the other way round. So my experience with that kind of predictions has always turned out wins which justifies my choice, I don't usually take down analytics of the match, I would like to join a very genuine community if I see one where we can share ideas and make predictions that we all get to benefit from it and make profit and more win.
It can happen the other way round because we dont know when we will be lucky. In most cases I make predictions and bet on them I end up winning while sometime I end up losing. One advice I can give you is to be careful of any community you want to join. Most predictions they make are not better than the ones you make. Sometimes, try you predictions and compare the odds of you winning. Personally, I wont bother joining any community aside from friends group where I am allowed to share ideas.