I think you've kind of reduced the meaning of my post to the point of missing a bit of the nuance here. I even said that there are comics that suffer in relative popularity due to subject matter or genre. But I don't see those people complaining on the forums. I was commenting on the prevalence of people complaining on the forums, blaming their lack of popularity on genre, and how the majority of the time, their comic is drawn and written to such a poor standard that it's far more likely the art or writing that's putting people off before they even get to the themes.
I've yet to see a comic with very high quality art and writing and more than a handful of pages that's got less than a few hundred followers, and I have been looking, because I've been on the lookout for good, underappreciated comics, trawling through the site and forums checking out anything that catches my eye. I'm drawing a non-BL comic in the Action genre (a genre with comparatively few comics here), so I've been looking to follow people making similar stuff and cheer them on. I don't expect to get a massive following myself, so I want to befriend people who similarly are passionate about making comics they care about to a high standard rather than chasing popularity. There might be some I haven't discovered yet, but I was talking about forum behaviour, not "stuff that happens on this site".
I have seen a few comics with pretty poor art and writing with lots of followers, but I don't think that's necessarily something that stops good comics getting readers, no matter how frustrating and unfair it might feel when you're working hard and comparing yourself to your peers. More people on the site reading comics, even bad ones, means more people on the site who might start reading your comic.