Since I have several threads there I am well placed to comment. A tiny minority of the posts and threads in the gambling and gambling discussion boards are actually about betting odds. The mere mention of spreads, handicaps and odds is a rarity in itself.
You are right most of the posters probably have never placed a bet on anything except a winner and probably do not know how betting has evolved. Maybe having a dedicated non-betting sports board would be the way forward.
What exactly will the "non-betting sports" discussion board be about? Rumors? Whether it's transfer news or not, I don't think having team news, updates, injuries, and predictions on a single thread is a bad idea, but I'd prefer if a single thread was dedicated solely to odds and predictions!
This is usually done by people who pretend to be gamblers just to bump up their post numbers for signature campaigns.
There are even some experienced members who are using this practice, and I am all for reporting this duplicate topics to moderators and deleting them.
Problem is that gambling section is a mess and moderators are not so strict there, but you can try reporting.
I'm surprised that a member who has only posted in the NBA thread and isn't a big football fan would open a duplicate thread of the three European competitions (UCL, Europa, and Conference league) for most 1xbit spammers to flood on; this isn't a good sign. I'll try to report the thread, but I doubt the mod will do anything because the OP isn't wearing a signature.