You should not flood the forums with repetitive, constant posting that denies other members their rights to have their threads and posts also seen on a forum's main index page. We do not set hard limits on this behavior, because we're all mature, responsible adults (or older teens/young adults) here and we've never had the need to oversee a member's behavior in that manner. In short, we trust our members to act responsibly and in a respectful manner toward their fellow members.
Members who choose not to act responsibly would likely find their posting privileges suspended for a time, until we were certain they could once again post in a manner consistent with our community guidelines and Terms of Use.
While I understand mental illness affects people differently, and such a behavior might be directly related to an episode or symptoms of mental illness, that doesn't excuse the behavior. In the 21 years operating this community, we've never had any issues of this nature.
So please respect your fellow members and never post more than a few new threads at a time in the same forum. (Only talking about new threads; not replies to posts, especially in forums with exceptions like Games forums.)
Thank you.