This is the first I've heard about a "no-YC policy for SaaS" outside of my own employer (after three back-to-back horrible experiences) but glad to see it's catching on.
As executives and purchasing managers get more tech-aware I think we're going to see an increase in due diligence into who is running companies, who their investors are, what other companies they've invested in, etc. Brands like YC will end up getting punished (and all their portfolio companies, by extension) for the bad actors.
At which point YC will come up with an algorithm to evaluate companies and blackhol certain companies without warning or process and we'll see HN posts "YC just blackholes my business!" but on Reddit, since they won't be able to post here.
As executives and purchasing managers get more tech-aware I think we're going to see an increase in due diligence into who is running companies, who their investors are, what other companies they've invested in, etc. Brands like YC will end up getting punished (and all their portfolio companies, by extension) for the bad actors.