Our posts to social media accounts like Facebook, Twitter, or Instagram may not necessarily be written in stone, but you might as well think they are before committing anything for the online world to see. That’s the main theme of episode 17 of the PC Mike Techcast and exactly why we wanted Diane Gottsman, national etiquette expert and founder of The Protocol School of Texas, to walk us through some social media rules to live by and avoid hurting ourselves. She’s sort of the Miss Manners of the Social Media World. It’s especially timely in light of the Clear app making all kinds of headlines this week – it was invented…