No we don't need a 'Like' button; that's what words are for. Like buttons stifle communication and breed laziness. Not to mention, Facebook almost certainly has a patent on it disallowing such use on other sites. If you like someone's post, why not join in the conversation and express your own point of view and how it aligns with someone else?
C-ATCH Pimg - DOB: 2/06, RATO, UJJ (x2), DJA, HIT, CA, CGC, High in Games, Reserve High in Standard- CPE Nationals 2014
RATCHX High Jinks vom Neuanfang - DOB 9/12 (Gotchya Day: 1/23/2013) CA, agility superstar in training