To be completely frank, I sometimes even find reading other posts in RPs I'm in difficult. Whether or not I'm the GM of that RP is irrelevant, some people just have a verbose and drawn-out writing style that makes reading IC posts a chore and not particularly fun.

Also some people make bizarre stylistic choices in regards to their posts, like switching between point-of-view narratives, switching between past/present-tense and even switching languages mid-posts (protip: this is an English RP site, let's keep the posts in English unless otherwise specified.) All of this doesn't make their posts more "stylish" it just makes them more confusing and that much more irritating to read. 

[b]I suspect one of the reasons many RPs die, is because people are fed up with reading other posts.[/b]