I think the Lego forum is great. It is more of a reflection that there is a big group of Lego fans here.
And I don't get the big deal. It's not like you are being forced to look at it or it's posts, so it doesn't really effect you.

Plus there is an advantage. Since non-registered users can post, they could find this place, through the Lego forum and join to be part of that, and then get a liking for Transformers and join that fandom too. It has worked pretty much the other way around so far with people stumbling into the Lego topics and getting interested in it