Some people think Mastodon is too weird to become popular:

I joined Twitter in 2008. We had to put a "d" in front of a tweet to convert it to a direct message and every other day you had some embarrassing private moments exposed because someone forgot about the ā€œdā€. Hashtags were just a community hack, introduced by Chris Messina to somehow tag content. Search? Hah, you wish! Tweets via SMS were supposed to be a thing. Oh, and the daily meet and greet with the failwhale. Totally not weird.

@bastianallgeier Not to forget the weird times a little bit later when someone invented Retweets RT @ which was weird because you further reduced the remaining chars.
@bkastl oh right!! It's super interesting how I had to dig out all those memories of the early days. It all seems so obvious now, but it really was quite brain-bending back then. I remember when my professor introduced me to Twitter and I thought: wtf this is never going to go anywhere.