Hi, creator of Lo-Dash here. Jeremy's comments are off base. I've gladly contributed to Underscore and am responsible for many of the fixes/features in the last few releases. I voluntarily revoked my commit rights to Underscore, without prompting, several months ago because it was awkward trying to move Underscore in a better direction while trying to work with Jeremy, who seemed distracted, lacking the patience to grok issues/comments, often losing his temper in issue/commit comments or trashing me on Twitter/HN. I'd still be contributing via bug reports and feedback if he hadn't recently blocked me.

It's unfortunate he's chosen to spread FUD instead of going head to head on features, compat, perf, dev needs/concerns, or any other relevant area of project comparison :/