Bip322 implementation is welcome as far as I'm concerned. It's uses may be limited for many, but very practical where needed. The functionality of being able to sign messages from non-legacy addresses is long overdue.
Not only that, but it enhances privacy. Instead of grouping several UTXOs into one address and then signing a message from that address, this can be done from many UTXOs, and even from multisig UTXOs. It is a good option for medium-sized servers to prove reserves without reducing their privacy.
import 30 WIF private keys may confirm this.