> If you wish, you can hold your own hackathon without 50/50 male:female enrollment.
When did I ever say anything critical of their limiting attendees? If they want to do that, that's their business.
If they want to write a blog post about a bunch of tricks that might help your event be more inviting to women, that's great too.
The problem is with representing the results as due to those tricks while ignoring the other hugely significant factor (limiting attendees).
Consider this: how about I write a blog post about how I changed my headline color from red to green and got a 300% increase in sign ups. Oh, by the way, I also added a free usage tier at the same time, but that's more complex and I didn't want to include it in the same blog post. You should definitely use green for headlines, though.