I remember arguing strongly in someone else's journal comments (Dan's?) that it wasn't true, for every possible reason under the sun: there might just be nothing someone can sensibly say to what you wrote, or they might have intended to but been distracted by their day job, or on the other hand the person who wrote something frivolous and got lots of comments when you got none might just have happened to fit well with the current mood of the readers at the time.

There are users who get a steady stream of comments on practically every entry containing *hugs* and fluffiness, but I think that's more to do with the type of friends they have than their objective popularity...

I don't normally expect to get comments on my diary entries, since I've been doing online diaries for years on Monochrome, which doesn't even have a concept of public comment threads following on from each entry. People occasionally send me a response by Mono's equivalent of private mail, but not all that often (or, at least, if everyone else gets more responses than me I've never been aware of it! :-).