17:22
@dougal We're all very happy to hear what you have to offer, just remember that this is a structured Q&A site, so people really expect clear, direct answers to questions. That means that things often get downvoted if they're not a good answer to the question at hand, even if they're useful information in another context. (And things get deleted if they don't answer it at all.) That's not ganging up, it's just maintaining the structure of the site.
Of course most answers don't get downvoted (let alone deleted), so even that isn't really that often, it's just what happens in the less common cases where people aren't quite on the right track.
If anything isn't making sense to you, I think pretty much any regular user would be happy to help explain here, and you can always ask on meta too.
(if that's not what you're talking about, and you've seen actual hostility, just flag things and we'll handle it, but people are usually good about flagging so I think we're okay right now)