Same. I've only ever made one post, and it wasn't to lemmy.ml, nor have I made a significant number of comments, yet I was banned first from the instance, then from the communities, for allegedly spamming. I asked in the Matrix chat linked in their sidebar, and they suggested I message dessalines, so I did. He rejected the message request.
If this is their ideal of Lemmy, then Lemmy is dead on arrival.