I get annoyed by the phrase “too much free time”.  People use it when they see something that they deem to be useless and a waste of time—certainly nothing they’d do in their spare time, oh no.

It bothers me because it’s effectively one person telling another that that person’s work is a waste of time, with overtones of dictating how they should spend their free time.  Generally, the things that people do in their spare time are things they find worthwhile or at least interesting.  If you don’t like what someone else is doing, go do something useful yourself, but don’t complain about them wasting their own time.