Maybe. Maybe for shits n' giggles, maybe for nefarious deeds. All I know is, it brings down the site as a whole. A few weeks ago I saw the same post 8 times before I hit 200 posts on my front page. It's not just infinity. There's a bunch of them that get gifs from a separate sub and they all spam it to the same 5 or 6 subs. Mademesmile, rarepuppers, paradelia, confused_perspective and a few others I can't recall off the top of my head. I use RES and tag them as spammers so when I come back and see the tag, I DV and report. I get a lot of hate but I'm just ahead of the curve. Those same posters will be saying that "Reddit content is all the same" in 6 months and this is the cause of it. Guess mods don't give a shit that their sub is being ruined by seeing the same post multiple times on their front page. It'll get worse, start flooding Reddit's front page and only then will you see users start complaining.