By "post throttling" I'm talking about this message that comes up when you post frequently in a short time span:
Looks like you're either a brand new user or your posts have not been doing well recently. You may have to wait a bit to post again. In the meantime feel free to check out the reddiquette, join the conversation in a different thread, or verify your email address.
This has come up for me a couple of times, and it gets a little frustrating! Since there's no way to verify your e-mail address (I've tried), it basically puts you in posting time-out. And because we're a much smaller site, it's really easy to incur the "your posts have not been doing well recently" message (since it can sometimes take hours for your posts to go above 2 or 3 points, especially when posting in new/smaller forums).
It's totally understandable if this can't be undone, but I would love it if there were fewer restrictions on posting (especially because, um, when have I ever made a bad post??!)
(lol I even have to wait to make this post complaining about the post throttling JEEPERS)