It will familiarize Signature participants with the platform they work for (Or renting the Signature space could be a better compliment). I've used Whirlwind before. It was simple and nice. Look like Many things changed already. I created a Note a few minutes ago and it gives me a deposit address that starts with ww2x. To be honest, I am not familiar with this kind of address and I guess I haven't seen any BTC address starting with ww2x.
Usually, you ask for a bech32 address. I sent you my BTC address Via PM that I got from the Note.
When you 'generate' a Note on the website the private key you are getting is a normal Bitcoin private key. It starts with 'ww-' so it's easier to distinguish from other bitcoin private keys you have in case you save them in the same place.
The Note Public Address is in fact the Legacy Bitcoin address corresponding to the private key you saved, the only difference is that every '1' is changed to 'ww' so again, you can easily distinguish a Whirlwind Note from a Bitcoin address.
Example:
ww-L4xK361wZYYxJg7vSwXgDTVBVXY4JfgYrUU5QZic2nNB9PUbMzbt - Note Private Key
ww8Sf8x3GBUiTxg55RQEzynf2Cdyy7F1ihh - Note Public Address
L4xK361wZYYxJg7vSwXgDTVBVXY4JfgYrUU5QZic2nNB9PUbMzbt - Bitcoin Private Key
18Sf8x3GBUiTxg55RQEzynf2Cdyy7F1ihh - Legacy Bitcoin address
If you do not want to generate the Note on the website you can simply use any other private key and it will work the same.
Of course, using a privacy-preserving technique is a welcome practice, but in addition, every stakeholder should use the product they endorse.
If Warren Buffet is drinking coke every day, and I don't know how healthy this is, for sure all campaign users should use the healthy mixers.
This is just my personal thought, every user is of course free to do what he prefers.