Mine is here: https://twitter.com/kirupa/status/897977436
Both my first and second tweets (and the time elapsed between them) kind of shows what I thought about the platform back in the day:
To find your first tweet, do an advanced search where the date range falls within the time of you joining. For example, here is the query that I used: (from:kirupa) until:2009-03-01 since:2006-01-01
