Back in season 33 we had the best (best = most answered) topic, but of course we had an excellent run, with some crazy results (win against France) and many people were following the NT.
Unfortunately things didn't turn out to be so good later on, perhaps this had an influence on the topic interest.
I had a very poor NT run this season, and being away and not be able to properly field teams or make posts wasn't a great help either, but besides that I may have a theory :
U21 seems "close", a reasonable goal for a trained player while NT seems "far", requiring too much training dedication, money, or wage sustainability. Therefore "it's not for me". Which is of course false, but you can't help countering the feeling I guess.
Or maybe it's my fault and having a new coach will improve things, no idea.