I joined in 2007 after stumbling onto the topic of socionics from MB...stayed for four or five years, then left and had my account deleted as I felt I'd wasted a lot of time here and didn't want to waste more (I figured wiping my account would also wipe out temptation). Re-joined last year out of...part boredom, part missing discussing socionics, part curiosity about what was going on here a few years later.
Being back here reminds me of stepping into a river for the second time.