"When you, as a free software project maintainer, rely on proprietary software for your infrastructure, you send a bad message of "I expect my free software to

"When you, as a free software project maintainer, rely on proprietary software for your infrastructure, you send a bad message of "I expect my free software to be good enough for you, but your free software is not good enough for me."" No you don't. You send the message that you're using what you believe are the best tools for your team.