Tactics fat chicks use in a vein attempt to get you attached in order to avoid instant rejection upon actually meeting them in person. (ie. cropping their photo (if they have one!) around the face only and on a flattering angle, posting photos of themselves when younger/slimmer, avoiding meeting in person until they've gotten to know you VERY well, etc.)
Girl: We've only been corresponding for 3 weeks ...I think it's too early to meet in person!
Guy: That's OK, I'm familiar with your factics. I'm moving on with a slimmer girl I'm in contact with... good luck!