Blocking Unregistered Spammers, Porn, Gambling

First I installed wellard’s wp-comments.php and wp-register.php. The spam kept coming in. The I added the $httpreferer check at the top of tehe wp-comments-post.php and the comments continued.
Redbug. I tried the above code, but got parse errors. When I cleaned it up and tested it I found that noone can post comments. When I do a test and logon as a user, the $user_nickname and $user_email is blank (at the top of wp-comments-post.php). How it this supposed to work.
I’m near stymied.

Dozer, I read your post in your other thread all ready. Just for the heck of it, try adding TG’s code ( https://www.tamba2.org.uk/wordpress/spam/#seven ). It honestly may help. Even if you don’t think the phantom comments are there, they probably are. If anything, it won’t hurt to add the code.

I probably talking out of turn here, could we check that uesrname and password are set before allowing comments to be posted?
DJJ

David Jackson, login and go to Options/Discussion. The option is there.

my spam problems (at least for now) ended here–> https://www.ads-software.com/support/3/16384 .
Also, I feel like a dummy for asking this, but can someone tell me how to insert a link in a post on this forum?

nevermind about the link. it seems to work now.