I just realized that WordPress has a “spam” section for comments, and that in fact not all the comments that are labeled as “spam” are actual spam. WordPress also seems to be automatically deleting “spam” comments after a little while.
Hence, I have probably missed several comments to my posts over the years, hidden in the spam folder and then automatically deleted without my knowledge.
If someone commented one of my posts and the comment didn’t show up, apologies, I didn’t reject your comment, I just missed it and it has probably gone lost. I hope you will write it again!