On the other hand, people use open source to market themselves to promote their talks, books and consultancy gigs. You have to accept the negative sides of that

On the other hand, people use open source to market themselves to promote their talks, books and consultancy gigs. You have to accept the negative sides of that as well. People will start to question the motivations of your contributions. People will be annoyed when the code you promoted has faults in it. Once you are doing things for commercial gain then people's attitudes towards you will shift. That seems inevitable.