I find it most disturbing that the big sins being brought up are smoking and watching porn.
There is purpose in judging the bros. But it is NOT to make them aesthetically pleasing for people watching God's people. It's not show! To act Christianese. To put on a mask where everyone is cookie-cutter shaped.
Does the sin cause harm to the church? Not those sins, that's for sure. The only difference between having it out with the porn-watched compared to anyone else, is because either the porn-watcher got caught, or was stupid enough to reveal that sin in front of the bros. Stupid, because about half the people "correcting" him/her also do it, but haven't been caught.
What does harm the church? For one thing, thinking the worst sins in the world are smoking or watching porn. If that's as shallow as the correction goes, it's time to leave that church. Because while that is happening what is causing it is all the members who think it's more important to call people on that then call them on the haughtiness that brought them to think that is the worst that can happen!
Haughtiness can destroy a church, Gossip can destroy a church. Backbiting. All things that can cause big problems in a church.
And then there is the other big stuff -- bad teachings. (Like smoking and porn-watching are the biggest demons the church faces.) WoF, the gay agenda, orgies, keeping a blind eye to cheating and abuse within the church -- any reason people will go to church other than to spend time with the Lord is the serious stuff. The stuff that needs an arm-in-arm approach with the real bros.
Look at the list of what was going on in Corinth. THAT's the bad stuff.
And then look at the list in Romans of which sins cause that. I can guarantee it wasn't smoking or porn-watching that caused those problems. But, I'm sure if they had easy access to porn or tobacco had been a middle-eastern crop, that same church would have been worrying about that stuff for appearance sake.
I think this needs to go much deeper than it has.