Europe

Blocking is just one of the many tools, and of course it's just the last resort.

You could create or engage in community discussions about rules for the community - like what kind of content is wanted, what kind of posts are people interested in, and what guidelines could make posts better.

Within these rules, you can vote on a given post to mark a post as particularly fitting or interesting for the community (vote a post up), or unfitting or off-topic (vote down).

If these tools don't work well enough in some cases for you, then the last reasonable option is to block the user. There's nothing wrong with doing that.