Lack of available prims probably. WoH is using only a part of a Sim while Legacies and Mischief Managed are full Sims. That however says nothing about the quality of RP, which is something you would have to find out on your own. If you are used to do Forum RP, I could imagine that you are what we call a "Para-RPer", writing long paragraphs, expressing also feelings and mimic a lot, not just focusing on conversation.
Some Sims expect this, others do not, others again would accept both. Some have special rules like that you are just allowed to talk one after another, which could lead to a situa