Plus it’s free to join a mailing list.
At the point they have to pay, will there be as much interest? No.
It’s a silly idea that will just take votes from left wing voters and divert them away from Labour (and the Green Party).
I’m sure the Tories will be very grateful come election time. They thought they were the ones with a problem from Reform but now Labour have the same problem.
If You Party ( or whatever they call it) is even relevant by then.