I wish we had a nice tagging system (and I don’t think they should be hashtags) that was also in common use.
I want to be able to search any post related a certain topic, and sometimes, these may not always be in that topic’s community, because topics can overlap. For example, I might want to read posts about Ukraine war, but those might be in world news, US news, or combat footage communities. Could be a community about Ukraine in general, or Ukraine war specifically.
I also may not want to get it from a single Ukraine community. Maybe by finding posts with the “Ukraine war” tag, I’ll see several communities and join the one I want. But there needs to be a way to group them somehow.
Such a tag system may be useful for combined topics. For example, I may want to look for posts about music software. They might not be common in the music community, or software communities. But I could filter by both tags and find what I want.
About the racoon recommendation have you tried other Lemmy apps? Curious what made you choose racoon