If the altcoin is Monero, this will actually be quite hard to link. With any other altcoin it's possible to trace, and depending on the exchanges you use they may or may not keep transaction logs.
But starting next year, you're no longer not allowed to discuss this on Bitcointalk. So anyone interested will have to think of this on their own.
It's not a perfect method, but mixers are not perfect too, we've seen blockchain analyst companies able to track BTC funds across mixers, especially when the amount were large. Theymos said discussions about mixers will still be allowed unless mixer links are posted (I guess mentioning brand names will be discouraged though) so I hope people will continue to talk about privacy and obfuscation here.But starting next year, you're no longer not allowed to discuss this on Bitcointalk. So anyone interested will have to think of this on their own.
It will continue to be OK to discuss mixers in a general sort of way. Just don't direct people to mixers: don't link to a mixer, don't link to a directory with links to mixers, don't tell people to "Google ASDFmixer", don't link to a mixer's telegram, etc.
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Examples of things that are not banned mixers include exchangers (unless they have a mixing function), CoinJoin-supporting non-custodial wallets, and Monero.
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Examples of things that are not banned mixers include exchangers (unless they have a mixing function), CoinJoin-supporting non-custodial wallets, and Monero.
Moreover, as a result of using mixing services or making transactions with any wallets connected to mixing services, their wallets are going under the tracing i.e. blacklist. 
