How do people make elaborate posts in a Play By Post game?

[Lord Raziere]

So, here we have a sample post in the spoiler of an elaborate (imo) post:

Spoiler: Sample Post

Show

Is that level of detail required for pbp games? How do people do that? Doesn't it get exhausting? Other questions? Comments?

Motive (In the interest of full disclosure): I basically am probing the idea of pbp to play my homebrew (a variant class feature for the D&D 3.5 ranger, not a large deal like a class).

Dude, I've made posts much longer than that just for IC meaningless/jokey conversations. though they were freeform and didn't have to worry about mechanics, so my pbp experience is probably not the norm.