Moderating is often more art than science, and I'm sure one could justifiably lock certain threads we haven't or leave open certain threads we locked. Best overall guidance I can give is that we want things that promote discussion, and favorites posts are more likely to involve people talking past each other than actual give-and-take. Sometimes, just a change in presentation can help things. If you really want to argue why Eevee or the like is a brilliant design, and tie it to your principles of good Pokemon design or some such, it's probably more likely to pass muster. To be sure, you can argue that some of this is just window dressing, but to the extent that a better hook/angle results in better discussion, presentation really does matter.
