I think the stealth topic as it relates to public blockchain is a HUGE topic to discuss on Steem and in the crypto world in general. Right now bitcoins are the semi-stealth crypto black hole.

The overall adoption/regulation/extortion interest groups and opinion issuers will pose quite a challenge for any stealth tech. justification.

So society at large (like the growing Steem community) should discuss and decide to what degree we want and need an open blockchain world with private stealth black holes that anybody has a right to enjoy. Once any arguments like laundering, financing of illegal and harmful things etc. have been elegantly fought - we might actually live in a future with a relatively defined area of privacy left - which should also include areas that need value exchange in private. No small task to tackle ;-)