@martin Yes, these options are already on, but doesn't help. I'l try switch off  "Anyone can register"? thanks!  

@martin It was disabled in server config with redirect to wpForo's login page. Whould  "Anyone can register" option in WordPress prevent spammers...

@martin, my forum is (sorry, its in Russian) Well it seems to me that the reason is exactly wp-login.php. When I make it available from the web a...

Hm, but "Reply" button replaces all text in message area. It may be not good when user needs to mention a few people or add nicename to some text.

Ah! Shame on me 🙂 Thanks again.

@martin It works, thank you!  

@sofy, thank you very much, it helped. And how to make bottom link "Mark all read" non-underlined? I tried in "Style" textarea this code, but it doesn...

@sofy  Looks nice now! Thanks again!  

@sofy, the URL is  

Addition - the screenshot of the second issue in my post.  85-foro1.png

Yes, it works! Thank you very much!