Shadowban users posting obvious spam instead of just banning them. Banning accounts just leads to more spam accounts, and we have no account creation restrictions in place. If they are shadowbanned, they might not create new accounts and they will carry on posting with their shadowbanned spam accounts.
If we are going to implement this, I think it is important to have a clear definition of what we mean by spam. I am not talking about people posting off topic things in the wrong sub, or people making a one off spam post trying to plug their youtube channel on /s/gaming or something, I'm talking about users like mallow and jacknight that are constantly posting stupid shit and not contributing at all.
Reddit's policy on shadowbanning is fucked up, but I think it could clear up any potential spam problems if it was used in the right way.
Edit: If this is implemented, I would suggest not putting this in the TOS or anywhere else. Don't let the shadowbanned spammers know that they have been shadowbanned, or it undermines the effect of shadowbanning.
Agreed. But if it's only going to catch a few, I'm not sure it's worth the effort, considering it's history of abuse at other sites. Other means will still be required.
It would only be a one-time restriction for brand new accounts. Once they get a couple votes, it'd be gone forever.
I know it's not ideal, but I believe it would be highly effective against spammers and it's the only idea I'm aware of that hasn't been tried yet. It could be made a sub option so that subs for introductions can still be submitted to by new accounts. And any other subs that choose to disable it.
It wouldn't have to be always in effect. Subs could turn it on when the spam volume is high, and turn it off again when things are better.