Please consider writing your hashtags in upper camelcase so screen readers have a chance at figuring them out.
#whyistayonmastodon sounds like an giant undecipherable mess of sounds.
#WhyIStayOnMastodon reads out "Why I Stay On Mastodon" 😄
(Reason #44 I stay here: my previous requests like this have been generally well-received, proving that most people are awesome.)