On 10/14/17 11:15 AM, Reuben Thomas wrote:

​Because with Flycheck this is already accomplished. Why not work instead on things that Emacs lacks?​ There are already far too many duplicated packages, leading to duplicated maintenance effort.

See the second part of this comment: https://github.com/flycheck/flycheck/issues/1177#issuecomment-267445833

"...I'd rather let Flycheck die if no maintainer was left to work on it than moving it into Emacs..."