Yes they do. They DA and DF for the same reasons that in USA, but there are less ex-JW that express theirs ideas in forums like this one. But they are growing in numbers.
I have some URL, of forums from South America.
From Chile: http://groups.msn.com/ayafintjchile/mensajes.msnw
From Argentina: http://groups.msn.com/TESTIGOSDEJEHOVA---NOMAZCARAS/general.msnw
Ginosko