Ask HN: How fast is too fast?

You're submitting too fast. Please slow down. Thanks.

How fast is too fast? I made a post on thread, then read another and three minutes later attempted to post on that thread and got this message.

I want to read HN in ten minutes and be done. Do I now have to read one post every hour, just so I can reply?

Needless to say, in posting this, I got the error message. I'm posting this, the next day.