This is just my opinion though, I think community predictions are very contradicting and at the end of the day you might get confused on what to pick which might lead you into picking the wrong option. There's nothing wrong with people who join such but as for me I prefer to make my own predictions and bet on them. It's comfortable to use my own ideas instead of getting conflicted opinions
That's the reason why I will always advice every sports bettors to learn how to make analysis on their own because in a situation like that, it's your knowledge about that sport that will make you take the right decision. You can be in a prediction community but independent on their prediction, only to observe what is going on there and also to review how accurate their predictions are. There's one guy on twitter who I was checking up his analysis, he is sometimes accurate.