I would change something about the "ask question" button on SuperUser.
Firstly, this button will make a question form after you click it, but only after you fill out the fields and click the "submit" button will it reply that "You can't make 6 questions in 24 hours."
Instead what would be less confusing to me would be if after a click on the "ask question" button, it would say "No more questions in 24 hours".
I think it would be a little less annoying for everybody.
The validity of your post is checked once you try to post it.
There is no real reason to do the check at a different time and show you an indicator that might simply be incorrect at the time where the validity is actually checked (as it might simply no longer be true at that point).
Assuming you wrote a lengthy post, just to be told "You can't post 6 questions in 24 hours" can be frustrating. But nobody is stopping you from leaving the tab open and hitting Post Your Question at a later time.
Similarly, consider you click the Ask Question button and it tells you "You can't post 6 questions in 24 hours". Well, maybe you posted the other questions 23 hours and 50 minutes ago and now you want to write new questions, but the system won't let you. Stupid system!!
For performance reasons, these kinds of checks are performed only at the time you submit a post. It would be too demanding on the servers to check whether you can post a question every time the "Ask Question" page loaded. Furthermore, the data you get don't make sense unless and until you submit your post.
Also, try improving your existing questions. Users with a constant record of low-quality questions, as indicated by voting, closure, and deletion, may be banned from asking further questions until existing questions are improved.
SELECT COUNT(*) > 6 FROM Posts WHERE (CreationDate > NOW() - INTERVAL 1 day) AND (OwnerUserId = 12345); (Replace 12345 with the actual user ID. If the query returns true, the question is rejected.) Besides, multiple such queries must be made, with each query checking different time periods and limits (such as 50 question in 30 days).
Posting lots of questions in a short time is an edge case. While its terribly exciting to find the stackexchange ecosystem, after a while a lot of users find that its also useful as a resource for looking up information, and that answering questions is a lot more fun and rewarding.
I mean this without meaning any offence, but I notice you haven't read all of the faq. Even without that you may have noticed quite a few your questions have been closed too. Its pretty hard, unless you get hit by a load of very interesting problems to ask that many questions at once, and once again, its not common enough to really bother with checking pre-question. The only time I've gotten anywhere close to that is during the windows 8 contest, and I was blundering my way through a new environment.
I guess that its also a good way to remind you, since it must be annoying to ask a question and then realise you can't. I however have no idea if this is an intentional goal of team SE!
My guess would be it's related to the fact that it will auto-save a draft of it for you. Not sure how long that draft saves for, but it's beyond the browser session.
So you should be able to type in a long question, click "Post" and have it disallow you, but then close the browser (or navigate away), come back X hours later and continue on with the question where you left off.
:P"Users with a constant record of low-quality questions, as indicated by voting, closure, and deletion, may be banned from asking further questions until existing questions are improved."