If you receive bogus criticism, respond ASAP! This is especially true if the feedback is untrue. This blog deals with social media feedback in which the commenter actually had the wrong company.
This is especially true if that feedback is unfounded. As I always explain to my clients, always take the high road as this is the long run can turn a possible negative into a positive. [ see blog post entitled: How to deal with negative reviews ]
However, this past weekend I came across a comment on one of the social media sites I manage that was so wrong. In fact, the commenter had this company confused with another one.