Txn malleabilty was fixed in V5
ZKchannels were ‘sort of done’ - which needed V5 txns to work, but seems abandoned
FROST is ‘sort of done’ - another very useful component
Why not finish & integrate these things to give a ‘secure lightning-type txn’ on Zcash ?
The user experience would improve with instant txns & virtually no fee, allowing a ‘proper’ fee market on L1 txns would address spam.
End result is ‘better than BTC’ as it’d be private, which is kinda the point…