When I first saw this post I thought you where talking about the baby dragon xD
But anyways, yes, there has been an increase in MLP roleplays recently. It seems to have started on FH RP day, when a massive MLP RP occurred in Bonfire Island. I have participated in a few as my MLP ocs, and have found them quite fun. (Even though I have been Powerplayed on my Diamond Dog a few times...)
One thing I like about them is how accepting they are. All the ones I've been in have included Literates, Semi-Literates, and Illiterates alike.
And they accept not just all kinds of canon characters, but all kinds of different and unique OCs as well.