-Proper Grammar
-Useful topics and posts
-Treat others kindly
-Have fun
-Joke with others
I don't know those are just a few things. To whomever told you the only way to earn respect is through donating is a noob. Sure everyone likes it when they see someone donate, and it helps out the site. But, thats not what earns respect.
Now about the whole deleting posts, only a moderator or admin can delete your post, but the only reason we will delete a post is for:
-Flamming
-Spamming
-Irrelevance to topic
-advertising
-And any other miscellaneous thing that shouldn't be posted. You currently only have 27 posts, so you shouldn't be complaining yet because with 27 posts on a forum where some people post double that amount in a day; you're not going to be recognized so greatly.