Curate, connect, and discover
I’ve been seeing it happen to a handful of people, but apparently if you try to delete your sideblog you will end up deleting your MAIN tumblr account entirely as well I don’t know if this is a bug or something, but I’ve seen it happen to ~4 people now, so until this possible bug gets worked out do NOT delete any of your sideblogs unless you want to risk deleting your account entirely