Well, this is working quite well already

I'm just having one problem (but others generally shouldn't have it) : since I have a weird and very short pseudo, my
notification page is full of posts not related to me, because they contain a crypto address or image address with "f2b" in it. TBH I don't really care but maybe you could add a fix to you To-Do list.
Also, I found the post
53343027 in my notification page, and I don't find any occurence of "f2b" in its code, that's weird.
Edit: found out. I think it is because when parsing, the "/" in the image URL became "%2F" or something like that, so "/2b" becae "%2F2b"
Edit 2: Even if I don't think that's a big problem for most users (who have
normal names), it may cause your whole thing to be broken with pseudonyms with special characters. Edit 3: In fact, not. Or I don't know.
I can't help you more, sorry

But you're doing a great job.