I can't see how this is a problem, after all, trans pity posts quickly get a suspicious amount of upvotes, often even making it to the front page of Reddit.

It's more than likely that they use bots or burner accounts to make trans posts so highly upvoted. A while ago I was browsing an obscure music subreddit, never many users online at one time. Smaller than this sub, even. Anyway one day a MTF posted a "cover" of a song, and it was legitimately the worst thing ever. He couldn't sing. He slurred as if he was on some strong substance. The "music video" was just a man swaying while wearing pink fairy wings. It was objectively awful. Yet, this guy had delusions of grandeur, his account name as (Name)Official, like he thought he was hot shit enough to have an impostor account. He constantly referred to himself as "The first transgender pop singer" or "The only transgender pop singer" and would often talk about himself in the third person, like he was his own management/marketing team promoting him. He'd also call himself things like "Heartthrob" and "sexy" even though nobody knew who this dude was, he had like 3 videos and all were terrible covers.

Anyway, it was unsurprising that it got downvoted, because it was trash. However, shortly after I downvoted it, it recieved a ton of upvotes in minutes, more upvotes than users were currently online. Less than positive comments also got mass downvoted in a short span of time. Out of curiosity I kept watching the page in old reddit (so I could see the % of upvoted) and over the course of the rest of the day the post would drop down to 0 but then go back up to 20+ several times. I have no other explanation other than this guy upvoting himself by use of a bunch of alt accounts because both the comments and the final vote showed that the members of the small sub did not like it.

Back to front page reddit trans attention grab posts, remember that Reddit, especially front page reddit, is not only primarily male but primarily STRAIGHT male. (Else why would tons of whiny posts about how women are catty cheating crazy bitches and how they can't get a GF constantly swarm the front page?) So think about it, why would MTF selfies get so much upvotes from straight males? The answer is that they don't. You'll often see this on frequent front page subs where there is a trans related post, if you sort by controversial, a HUGE chunk of anti-trans or skeptical comments will be downvoted or deleted. So I don't think the majority of Reddit is pro-trans and likes seeing dozens of greasy, balding men in ill-fitting anime cosplay wigs; MTFs just abuse the upvote system by alt accounts and vote-jerking off eachother.