The Hackernews discussion about me leaving Mozilla touched on how I identify myself as a Christian at the top of my blog. I do it for a few reasons.
One person said it does turn me off because of what it might imply As far as personal biases. That's close to one reason why I do it: my Christian worldview should pervade everything I do, and I think it's honest to declare those "biases" openly so people can take them into account. When this leads some people to form negative first impressions, I think that's better than letting them proceed with false assumptions.
A pitfall for that approach is that so many people's impression of what it means to be a Christian is inaccurate. But that's another reason why I self-identify this way: the more "ordinary Christians" stay in the closet, the more people's impressions of Christians are shaped by the extreme cases the media likes to dig up.
One reason I don't do it is virtue signalling. For the great majority of people who encounter me through my blog, being a Christian is no virtue.
Some people in the Hackernews thread saw it as proselytising. It really wasn't, just as "repatriate Kiwi, Mozilla hacker." was not encouragement to move to New Zealand and work on Firefox. Having said that, I'm all for proselytising in the right context. You can't be a Christian, believing that you have found the key to having your sins forgiven and being granted a relationship with the God of the universe, and decide to keep it to yourself. Sure, I often find proselytisers of various kinds annoying, but I respect them for following through on the logic of their convictions.