I see a lot of potential to monetize once they've hit a prescribed user base. While the TAM seems niche, there has been a solid void for unfiltered feedback on orgs that can't be dictated by organisations like how it did for Glassdoor. That concise feature with sufficient data could be concise to give scores to orgs as voted by real folks in the system and could be gatekept under a paid model.
Beyond that, as you mentioned a fair amount of folks within the app are doing fairly well as seen across polls and posts. This opens up doors value added services that can be touched by members. Think how you get influenced by your peers from your insurances to demat accounts to what not, this can give you a more real feedback on things.
The 3rd way, which I believe the app for now has removed was on hiring. Something blind has done as well.
Beyond this, the app has potential to monetize by tapping into value added services think resume composition, or educational programs. Given the extensivity of data, they are at good position to capture the pulse rate and offer services to preferred partners with revenue sharing models.
I do have a few off beat ways that I think the app would eventually utilise, but that's probably foe when the team does any user calls and offers good coffee π