See, this is actually posting spoilers, because since you omit things that actually happen you are revealing what doesn't in your "predictions". This is terrible, equally as terrible as people who post "After this chapter I'm pretty sure that <"speculation" that is very obviously just a bunch of manga spoilers you couldn't possibly predict>".
I guess as long as people don't know that's your posting gimmick they can't discern a pattern but really? Inventing fake "theories" and pretending like you don't know what's going to happen is absurd. What kind of enjoyment do you get out of posting that.
If I had posted fake "theories" about what was going to happen in GoT based on what I was thinking reading the books at the time my posts would be, rightfully, deleted in a heartbeat.