A brother had a study with a work colleague he progressed to baptism then after about 18 months stopped attending ,I asked the bro how so &so we don't talk anymore.
Another one a witness married someone not in the lord they had a Bible study got baptized started a family then the original witness had a affair and is disfellowshiped and the person still attends .
Apart from three reactivated ones and one of them is now disfellowshiped and no longer attends that's it in more than 10 years
And about a dozen born in left.