I am guessing they are using WET as the opposite of adhering to the DRY principle: https://en.wikipedia.org/wiki/Don%27t_repeat_yourself

In my humble experience, anyone who can't constructively criticize others' code is probably a bad programmer themselves.

You may very well be a bad programmer. Almost all of us are. It is good if you are perfect out of the gate, but it is also good to get things done, and keep improving.