I have followed these threads for the past few seasons of UK & Australia, I don't see a problem with spoilers, actually quite like them. Usually they are about things that are already in the public domain, just like gossip that takes place on all of the other threads on Tattle. I enjoy the commentary as well as the gossip, some of the comments are hilarious, but if its only commentary that is "allowed"
it can be a bit boring with lots of people saying the same thing because they may be slightly behind others. Just my preference. Maybe there could be 2 MAFS threads, one with spoilers (gossip) and one without?