The other extreme is people adding 20-odd tags to a post. If I could filter out posts with more than a given number of tags (5 or 6 would be about right), I would.
A combination of follow hashtags, filter words and block people works quite well for Mastodon.
“Just in case” is a little optimistic. Come 1 July, RIP.
The blackouts will make no difference to Reddit’s plans. The API charge will come in. The content creators and moderators will leave. The content will go stale. The smart shareholders will cash in early; the dumb ones will hang on for the prospect of a greater return which won’t materialise. Once the content is stale, the readers and lurkers will leave. Reddit will become a has-been, a memorable item of internet history like so many other sites.