Nothing is more annoying than cheapskate companies that are too mean or stupid to spend a few grand on their own website but instead are only to be found on Facebook. They thereby are losing out on business from that very significant proportion of the population who are not Facebook users because they value their privacy too much.
I remember when my daughter signed me up in the early days of FB and within a month FB was asking me if she was my daughter! I got out of there post haste! Creepy was the thought that came to mind!
