Substack is a Y-Combinator startup, right? I see them hiring here a lot, anyway. I've always wondered what the cutting-edge technology or business model it asp

Substack is a Y-Combinator startup, right? I see them hiring here a lot, anyway. I've always wondered what the cutting-edge technology or business model it aspires to provide, such that the idea was worthy of startup funding and so much interest. After all, hiring a developer to set up a Wordpress site with a few plugins and integration of some subscription payment plan through Stripe or similar couldn't be that hard, right? Maybe Substack's goal, then, is to create a truly censor-proof platform for independent writers. I'm not sure that is currently one of their goals, but after the last few weeks, it probably should be. Otherwise, what's the point vs just some generic "Shopify for writers" that I'm sure already exists, though would be heavily dependent on the big players who could cut the platform off without notice. So do we know if Substack is ensuring that they control their "sub stack" down to the utilities level (e.g. electricity and ISP)? Otherwise, one bad apple (e.g. Andrew Sullivan daring to reference a best selling book from the 90's that's no longer kosher amongst the woke) could ruin it for the rest of their customers.