As jet said, the rules here are the same when it comes to hosting. However rules here are more strict about the length of posts etc One thing, I don't want to go check (yeah, it's hot here so I can be lazy) but if you're hosted on trap, you can't get hosted here.
Astahost works in exactly the same way as Trap17.
Per day you are hosted you lose one credit. The amount of credits received depends on the lenght of your post, of course also repetition is checked (we've had people who copy some lorem ipsem filler etc for credits they got banned LOL)