I asked this question some time ago. An answer was posted but it didn't directly refer to my question but to some flaw it allegedly contained.
After some time of researching, I learned that there is indeed no such rule and wrote that as an answer to my own question. Admittedly, it was not the best answer because I didn't show any proof or something but anyway.
It got downvoted once and later deleted.
Could anyone tell me what was so bad about the answer? I also addressed the creator of the other answer but he hasn't responded yet...
And do you think that other answer is on point and addresses my very question? IMHO, it isn't. The most helpful part was a comment beneath it saying
There are no such rules; see 7.5.1 as I've quoted.