It would only be spam if it was posted to communities that aren’t on topic or if the individual communities were not interested in the content posted. The way the fediverse is set up, there are going to be tons of communities that all offer similar content. If I find an article that is on topic of several communities, why should I have to pick which one I post it to? How would I choose? Why can’t I post to multiple if I’m trying to get people in all communities to see it?
Spam is typically thought of as unwanted material. As long as the things that are being posted are legit, this isn’t a spam problem, it’s really a fediverse problem that someone is going to have to find a solution to like only displaying links one time if multiple posts are made to similar communities or better yet figuring out a way to federate multiple communities into one big community where everything posted to one automatically gets posted to all of them. But that’s still not spam, that’s just redundant on-topic posts being made to proper places.
It may be semantics, but word choice matters. Especially when your suggested “solution” involves blocking people who are posting legitimate content to places. If everyone goes around blocking all the people posting content, pretty soon there won’t be any content or any people to see it and that’s harmful to the fediverse as a whole. Let’s use the correct terminology and come up with good solutions to the actual issue at hand instead of thinking of it as just needing to block a few spammers like these people are sending out dick pill emails to thousands of people at once.
