Mate, I've seen a dozen of these "founder cohorts" promising the moon. As someone who's spent years in performance marketing, I'd want to know one thing before putting any skin in the game: what's the actual conversion rate from those investor eyeballs to real intros?
From my experience, vanity metrics like "impressions" and "featured startups" don't pay the bills. If this is genuinely free lifetime Pro for the founding cohort, there's no harm in signing up - just don't expect a flood of term sheets overnight. treat it like any other channel: run a small experiment, track your follow-up rates, and see if the audience actually engages. Otherwise it's just another directory listing with a fancy label.
And if you are a dev & founder, good on you. just keep your spreadsheets handy.