It seems like there is a problem with whatever Lemmy UI you’re using. The post is formatted fine in the default Lemmy UI with the hashtags showing as normal hyperlinks: image
I’m aware that hashtags don’t have a function in Lemmy, but the post is originally from Mastodon. Furthermore, in spoken English sometimes people will add “hashtag” as a prefix to words and phrases for emphasis. That said, @dessalineset al should definitely add hashtag functionality to Lemmy. It could be useful for post flair, for example, besides compatibility with the rest of the fediverse.
Sorry if you don’t like cross posting. I think it’s a nice feature that helps more people see posts and find communities. It also helps me interact with commenters when I make a post originally to Pixelfed or Mastodon.