@ David
Thanks for your quick response.
Yeah, you are right.
they also don’t notice about it in plugin page, so users install it as free and surprise later.
it looks “deceptive” and shame on you (WPMU DEV)
Yes, he can send a a message !
as the plugin’s condition on pm4wp-template.php:line 16 : this page should redirect to login page, not allow to guest to send any messages. isn’t it?