It's that very specific brand of "ironic" safe-horny that wants to have its cake and eat it, it's a way to pander to both the lowest common denominator sex joke audience who giggle when they see boobs on screen and social justice circles at the same time that just comes off as fake in both respects. I don't particularly care if people wanna thirstpost (within reason, don't be that annoying fag who spams "FEET!" in a sfw stream chat) but at least own what you're fucking doing, you're not more virtuous than other straight men just because you have a wrinkle fetish.Flork is definitely just using it as a "HEY GUYS YOU KNOW THIS ALREADY! DONT YOU WANT IT REPEATED BACK TO YOU 500 TIMES?!?"
Funny how its arguably much more popular counterpart at the time "Forever 17" has been basically forgotten. But you are right, it has stopped being a meme and just become coomer lingo.
It's the same thing that annoys me about a lot of the Twitch thots, they know sex sells and want to cash in on it, but don't want to accept the labels that come with that. If you wanna post your tits then just post your fucking tits, beating around the bush with a bunch of "if I get 100 likes I'll do the nude book meme!" shit honestly feels more trashy than just admitting they're a whore and going all in.