Yes, as far as I know there is certainly a message limit in this website, which is relevant for all of the members of this site, at least the ones who use the mailing system and enjoy the services.
It seems like there is some confusion about this feature, and I see the confusion growing up from day to day.
Id like to explain about it for a bit in order to get some understanding here.
The message limit is basically reached when a specific account had sent a bunch of mail messages through the sites mailing services during exactly one hour, depending on their type of account (what the account is meant to serve, either position). For example, I have heard before that coven leaders (the high priestess and the high priest of a specific coven) and other positions have higher mail limits (the ability to send more messages during an hour, or another exact period of time) due to their business and importance of positions (sending messages might be a necessary thing for them due to what they do).
If you can no longer send mail and message people and have gotten the mail limit reached, it means that you have sent the number of mails youre allowed to send per exactly one hour.
Dont worry if you reach it, this limit is only temporary and it will probably end up and be lifted after about one hour of waiting and not being able to send mail and message people.
And if you do reach this, do not try to send mail to people. If you keep trying to send mail and message people while youve reached your message limit, the time of waiting will be reset and you will have to wait at least another hour until your account can send mail messages again, and so on. This feature was probably invented in order to keep away people who are willing to spam the mailing system and abuse the mailing services. The best thing to do in order to avoid this is not to send people messages just to say Hi. ;)