Nobody takes the label "flake" around here seriously anymore unless you're Neko levels of stupid about it. As to the reaction of calling someone a liar, see the reactions to OP above. More people called them a tittybaby than agreed with them. The only deets they had were that the other person was tagging around and not tagging them, too. Considering 99.9% of people around here do that on the regular, that's not something that is ever going to earn you a bad reputation unless you do it to everyone you play with.
no subject