Before the whole Reddit migration I was passively aware of the Fediverse, I thought I somewhat grasped the concept, and had created a Mastodon account, but never really used it.
But once the migration started, I decided to try out Kbin, and really liked it, and even started to use Mastodon more often.
I started a Mastodon server and had been running that for about 5-6 months before joining a Lemmy server. I knew about other ActivityPub platforms, but hadn’t felt the need to join until then.