Maybe, but that's an untested assumption. AFAIK, Facebook's crawler behavior is a black box. Who knows how often it recrawls? Or if there's even a constant beha

Maybe, but that's an untested assumption. AFAIK, Facebook's crawler behavior is a black box. Who knows how often it recrawls? Or if there's even a constant behavior? Either way, from an experimental design perspective, leaving that assumption untested is unwise.