Hi and thanks for this valuable feedback - we really appreciate it and it goes long way to helping us make this plugin as robust and easy to use as possible.
Incompatible with the post title about subject like hack, password...
We will take a look at the "advanced character string filter" and investigate the cause of this.
I suspect it might due to something such as some missing escape "\" characters in the rules.
Incompatbile with "Admin Management Xtended", in admin post, the buttons doesn't work
Similarly we will investigate this too.
In the meantime please leave the "Advanced Character String Filter" checkbox disabled and we should have some definite answer/fix for this soon.