YUP. I've tweeted and griped about bad changelogs for a while... There's no standard really or 'boilerplate' and I don't think it would be too hard to make one and get everybody to agree on it. Dates next to versions and item prefixes like "bug" or "feature" etc help. I read changelogs pretty much every single time for every plugin/theme or app on my phone too. If we set a standard most will follow it.

https://twitter.com/ChuckReynolds/status/134050067614142464
https://twitter.com/ChuckReynolds/status/384823150342438912
https://twitter.com/ChuckReynolds/status/558438308624093184