>You're simply demonstrating NIMBYism.

Reducing something to a term doesn't negate it. There are many things which, if they start happening in your back yard, you would have valid reasons to object to and work against. Yet you could call all of them NIMBYism. So what? That's not shorthand for wrong.

The neighbourhood around you turning into a transient state where your neighbours change on a daily basis? To me that's a valid cause for concern. To others, young professionals renting in a busy city and moving every 6-12 months? Probably not so much.

Both positions are valid and deserving of consideration.