I'm always available to answer questions, either here or at firstname.lastname@example.org.
It seems to be a excellent start to a platform. But what worries me is the way how the funding of the entire platform need to be sustainable, otherwise all of the services within will eventually close and be lost. Instead of where each service could have it's own funding, and people can vote with their wallet which service to keep.
Sourcehut makes more sense.
You should change your professional plan, probably Mark it up 3-4x at least. If professionals are using the service (ie they’re making money themselves from it) some will pay $40/month for it. Just a few of those subscribers will let you hit all your goals, work full time on it and let you keep the $2/month plan out there in the long term.
I don't know how invoicing works for a web service, but maybe that would be a model to consider? Keep the low price point for individual users, but use a lever like this to add some considerable markup for companies purchasing your services.