Max message per time interval feature please.

Thank you for the suggestion.

Best I can do at the moment: https://github.com/WebDevStudios/Chat-Room/issues/33

This plugin says it has no update in two years. Is it ok to use with current version of wp?

Theoretically it should be fine since it’s all post types, and file writing and ajax. Do note that we are not actively developing it at all at the moment, on top of the long time since last update.