AIBU to get irritated when people say this on MN to someone? They literally have no idea if the OP is a good mum or not. Yes fine to say something like - doing x does not make you a bad mum. Or you are obviously trying to get help from everywhere that should be helping. But it might be that the OP who posts about not taking the kids out to activities every weekend and is being reassured that that is fine and being told she is a good mum, is also hitting her children whenever she gets angry. You don't know. You have no idea at all from the tiny bit she has written whether she is a good mum or not.