For my tastes this is excessive (especially since the formatting is non-existent), but you do pay a cost for longer variable names. There's only so much you can grok when reading a passage, and long names hinder any higher-level understanding of what that passage actually does, requiring you to resort to carefully thinking about the problem rather than any shortcuts and insights your powerful visual cortex might provide.
For my tastes this is excessive (especially since the formatting is non-existent), but you do pay a cost for longer variable names. There's only so much you can grok when reading a passage, and long names hinder any higher-level understanding of what that passage actually does, requiring you to resort to carefully thinking about the problem rather than any shortcuts and insights your powerful visual cortex might provide.