Is it ok to continously spam the same category?

There is one guy who keeps blasting his lists (and creating multiple item lists for the same game even!) on games/steam. It is really ridiculous.
You try to list 1 or 2 items, and within minutes it is on page 2 or 3, because this dude went ahead and re-posted all of his games again.
It is understandable if the website has crazy amount of users posting at the same time, but 2-3 users rotating the content (and if both are online, then it is content wars and they keep posting/reposting)…
Shouldn’t there be a limit for reposting things?