when you have nothing coherent to say, I suppose a groan helps you to feel better. I've never groaned at anyone. As I've said before, when I feel that exchanges between myself and another poster just turn in to boring 'you're another' slanging matches, I put them on 'Ignore', which causes, I think, quite a few of the groans I get. If it helps them, good! I genuinely don't notice nowadays.