Are the easy way out during review time.
They are the feedback that makes you feel good for a short period of time but that accomplishes nothing to your growth and development.
They get the reviewer out of a jam by making you happy (maybe providing a raise) with having undertaken little to no work to help you grow into the next year, cycle or project.
If you receive one, ask for more, don’t let them take the easy way out.
If they refuse, time to find someone that wants to invest in who you are to make you better.
If you can’t find them in the short-term, become that person.
(And suffice to say, if you are in the position of giving out Pats on the Back, don’t)