Oh, I hear ya.
Here's a list of submission guidelines that drive me nuts:
1) Submission instructions that have 9+ steps.
2) Poorly organized submission instructions that bounce all over the place and turn into editorials.
3)Hard-to-find submission guidelines.
4)Quasi-threatening payment terms. ex) You can have 25 bucks or two copies of the magazine... but we'd really like it if you'd donate your payment back to us... we tend to publish out supporters first.
5)Submission forms that are missing some vital piece of information.
6)Signing up for a submission service, filling out their stupid form (by now there's a half-hour invested in the project), sending it, and then getting an email stating that your ms is saved in the "wrong" document style... but they don't tell you what the "right" document format is.
7)Ezines that accept your story and then fold before the first issue.