But what does this mean for Steem and Steemit? Do we have to abolish the communities again?

My original expectation, back before communities existed, was that the community owner was going to be able to pick their owning account name, and that the name would be relevant to the topic. I guess there were reasons why they decided not to do that, but from an SEO perspective, it seems like it would be an improvement.

Maybe there's a way to decouple the account name and replace it with a relevant string that can be chosen by the community and arranged in a way that doesn't conflict with regular tags, i.e.

steemit.com/c/[community_tag]; or
communities.steemit.com/[community_tag]