My concern is that Lemmy is not scaling and was not tested with enough postings in the database. These “nice to have” slick UI features might have worked when the quantity of postings was much smaller, but it puts a heavy real-time load on the database to search postings that keep growing in table size every day.
I also suggest that this kind of feature be discussed with smartphone app and laternate webapp creators - as it can really busy up a server dong text pattern matches on all prior posting content.
Until a in memory search backend like Meilisearch or Elasticsearch is implemented this seems indeed like a very bad idea. I guess they wanted to do that and got sidetracked?