> a spam-based company like Sentry

Sorry, I think you might have them confused with another company, perhaps something that is related to email marketing?

Sentry is a crash reporting system, and their open source self-hosted version is both free and 100% compatible with their hosted/paid version.

They (so far) have been good stewards of open source and they deserve to be marketed a bit better than others in the space.

FD: happy sentry hosted user here.