I can't speak for Paizo (but every event I have ever attended) has been a safe space.
Not one of the GM and players (white males included) has put up with any behavior that wasn't PG13 or inappropriate.
Everyone at the table respects certain boundaries - now I have seen those who are socially inept, or even others who are clearly working through their own issues at the time, but the maliciousness and predatory salaciousness of the mentioned article - I can say I haven't seen any evidence of and as somebody whose; friends, wives, daughters and nieces attend events being safe is something I am vigilant about.
In attending PaizoCon myself, I found the people welcoming and really nice to be around (I have always thought that what happens in someone else's bedroom between consenting adults is their own business).
I understand that being polite to someone (just common courtesy) doesn't mean I am making a move on you, neither is noticing that you are wearing a costume - if you are dressed to impress - let me be impressed and let it go. Not every male (or female) is a predator - be mindful of your own baggage that you are bringing to the Con, the rest of us are just happy to share our time with a fellow player at the table we don't care about your skin colour or your sex or any other preference, we are simply there to have a good time with people that share our passion - and if you are lucky enough, with the people who create the stories we play.
If you feel uncomfortable - just find a GM, a Paizo rep, a volunteer or just the person next to you and speak up. You will be supported.