Incognito, yes I remember the elder who went through the baptism questions with us seemed to really emphasise the one about disfellowshipping. For me, I didn't think there were any consequences becasue I couldn't see myself 'sinning'. It never occurred to me that disagreeing with a teaching might be considered a sin!
I remember I was the only one in a group of five teenagers who couldn't see that difellowshipping was an act of love. I said it seems like a punishment to me.
The elder went over that section again but I still couldn't see it. He gave up and moved on. I should have realised then, but I was only fifteen!