I did not intend to be critical of their work. They're doing OSS as best as they can and good for them. I am just saying that it's a different beast if Sentry is OSS vs a much simpler to operate OSS product. Licensing matters less when the operational cost acts as an inhibitor to adoption of your OSS offering.

True, opportunity cost is a factor, sorry if my reply sounded a bit brash. IMHO they are one of the few orgs who got this model right compared to lots of others who went the open core or support/consulting contract required OSS route.