Nobody here old enough to remember rules 30&31 of the Internet lol?
For the first systement, yes, there are a lot of women on the Internet nowadays. But there also are a lot of men pretending to be women, and a lot of creepy men, so I’m guessing a lot of women just don’t mention it or pretend not to be one just to get some peace.
It all boils down to stereotypes, IMHO. Every time you’re making such statements as “all X are Y” when talking about groups of people based on one criterion, you’re stereotyping. Such broad generalizations are rarely useful outside humoristic tropes, and even then…