I tend to disagree.
The Hospital topic didn't even get close to what the random one has. We averaged 50 posts a week. We have 100 posts in one day on this one. The way I see it, Random Role-Play is similar to the Pringles topic which got closed by @Goku_Ironheart.
All three of the topics mentioned above can be thrown in the "spam" category, but if one stays through it all, it should be Hospital one.