Never give more data than is needed and you won't need to ponder anything. It's never an advantage to give it up

Set up an email at a free, non Gmail provider. Get an address that you can remember, the only issue will be losing credentials.

It depends what you wanna do.

If you’re just buying weed it’s neither here nor there. You’ll need to give whoever you go with some photo id and you have to buy some somehow*. Nobody cares.

If you’re selling, or for some other reason need to remain disconnected it’s a bigger conundrum.

Protonmail will give you email ring fencing, but if you’re buying henrys on your mobile it’s pointless.

Hi mate I already have a wallet with coinbase will this work to buy stuff of lb or do I need a more stealthy account

Hey buddy. It’s all about your attitude to risk.

Here’s a recent conversation, with some good options if you decide you want them.