Every FReeper should have a Twitter account. That's where the fight is. Not here.
I would never say what all Freepers should do or not do.
Freepers can do as they wish, just as you are free to have one if you wish.
No way would I be pressured to have a Twitter account and submit to their censoring or tracking, and NO NEED for me or anyone to have to defend their reasons for not joining Twitter.