Re the title: ok, we've replaced the submitted title ("The Julia language has a number of correctness flaws") with a representative phrase from the OP which uses the word 'ecosystem'.

HN's title rule calls for using the original title unless it is misleading or linkbait (https://news.ycombinator.com/newsguidelines.html) and "Why I no longer recommend Julia" is generic enough to be a sort of unintentional linkbait - I think it would lead to a less specific and therefore less substantive discussion. In that sense the submitter was probably right to change the title, and for the same reason I haven't reverted it.

I'm going to autocollapse this comment so we don't get a big thread about titles.