Honestly, I don't follow predictions of the said sports gambling experts but I do read their analysis about the game. It's really helpful to see who are missing in the game and who might play that could be a big impact to the game.
After that, I do my own analysis and I'd be happy to predict the results of the game on my own rather than relying on someone else who thinks they are good at predicting the game. Reality is, there's no assurance with their own predictions because the game cannot be controlled by anyone unless there are circumstances where they need to lose because of an important reason. i.e. Draft picks lottery (tanking)
Yes many gives prediction in their telegram groups maximum time they give sure win but some time they fall the followers in loss why because when we in loss they predictioners get profit if the accounts creat from their refarence link. No one is your in this game thay come hear for earning that's the reason don't trust any one do your own analysis and make you own win and own losses that is more peaceful more then follow other's.