This question already has an answer here:
On Stack Overflow, I got the following error message.
What? I have been helping users on Stack Overflow for two years. I have posted almost 500 answers and only 100 questions. I have gained 10k reputation for this. And now, when I am in the need of help, Stack Overflow will turn back to me?
I am working very hard using a technology which is new to me. All my questions are very well researched and have 1+ upvote. I think I know how to ask a good questions, after two years of hard work here.
Sorry, but I would expect more trust from the Stack Overflow side instead of treating me like someone who is abusing.
Argument: You cannot ask so many good questions in 24 hours.
Answer: this is speculative and regulative. Stack Overflow was always about judging posts quality. Why it is not consistent in this? Why don't you look at the quality of question the user is posting, instead of pre-judging how many good question can he post?
EDIT 2019: in retrospective, you can see those 5 questions (1, 2, 3, 4, 5) I asked that day (one got closed), they have 21 score total, which is on average 4.2 votes each. So it is possible to ask high amount of good quality questions, as opposed to the prejudices which argue for the limit ;-)