Ok thanks for the extra bit of information.
So, to clarify the situation right now is: https://testcoz.hangisoru.com/lgs-cikmis-sorular.html is NOT being recommended (in other words, YARPP never recommends it on other posts). BUT when you view that post, YARPP does show what other posts are related to it.
So YARPP is properly doing #1, “exclude certain posts from ‘The Pool’, so they will never be included in YARPP’s suggests posts” (that I tried to explain here). That is expected.
It is not, however, doing #2, “not show related posts on posts with a certain tag”. That is the expected behaviour. The FAQ ‘How can I prevent the “related posts” list from displaying on specific posts?’ is wrong: using the setting “Disallow by tag” or “Disallow by category” does NOT affect whether YARPP will add related posts to a post. It will only affects what posts can appear in YARPP’s related results.
So if I have post A, which uses tag “a”, and I set “Disallow by tag” and check “a”:
1. when viewing post A, YARPP will still add related posts to it
2. when viewing other posts, post A will never be suggested.
So I think what you should do is add the HTML comment <!–noyarpp–> onto all the posts where you don’t want related posts to appear. It’s probably more work than using a tag, but that’s how YARPP currently works.
I will fix that that erroneous FAQ.
Does that make sense @dieforyou ?