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So it's kind of similar functionality Gmail provides with + address. Your hn-clusmore@kopi is Gmail's clusmore+hn@gmail If/when kopi becomes popular, what stop

So it's kind of similar functionality Gmail provides with + address. Your hn-clusmore@kopi is Gmail's clusmore+hn@gmail If/when kopi becomes popular, what stops from websites just removing anything before - before saving clusmore@kopi & thus identifying, similar to what they do with Gmail plus addresses. hn-clusmore@kopi becomes clusmore@kopi. Signing up for new keyword is not like signing up for a new GMail address? Thanks

Shorn 8y ago
Yes, similar to the gmail + address. If Kopi became popular enough that people found it worth doing this - I think it would be relatively easy to come up with many different approaches to prevent / mitigate this sort of thing. Different separators, passcode separators/prefixes, machine-learning based on the from / to pairings, ... all the way up to white-listing (blech). As a paid service whose continued existence depends on the customer's satisfaction - it'd be easy to justify doing any or all of those things.