when someone uses that statement, they basically try and shut down your criticism of something and never address anything about your original statement and how valid it may or may not be
they never mean it like "others like it, stop being a dick", they almost always mean it like "i like it and you suck for not liking it too"
it's such a stupid shield against (usually valid) criticism of something or an objective opinion that is completely fine
you should like and enjoy things, but you should also express criticism if it is lacking in some parts.
like, if you are just being a prick about something, then fine, the statement is overused, but valid
but just a general opinion and criticism of something shouldn't deserved to be shut down by a statement idiots on the internet use to protect what they like