HEX is a popular scamcoin with maybe the most surreal and incredible "we're not a scam" argument list I've ever seen. It seems dumb but this type of psychology has generated a very strong fanbase.
seems like some version of this mechanic applied to a ‘regular token’ could have benefits in that it incentivizes savings?
(retrospectively applied to bitcoin or ethereum, this mechanic could have helped you not to sell too early)
No scam there.
The smart contract is immutable and has been audited, with 100% uptime.
Lots of great information at sites like http://hexnoob.com and http://lookintohex.com