It's a valid point. But it's also a bit lacking. The 50/50 gender distribution might just be a result of the success of a platform, not its main driver.

Steemit could be successfull with only males or only females, as long as there is enough interesting posts to read for the userbase, it should not be a deciding factor. Just like you have businesses that are successfull when focusing on one gender in specific. Read; Gaming industry and fashion industry, where one gender is hugely overrepresented.

It would be interesting to see a gender distribution on reddit, which is quite successfull and the closest comparison to steem as of now.