Much more of how and who i am both good and bad gets revealed online as opposed to off.
Off line social anxiety and social interaction difficulties are a greater issue(though the latter can still cause problems) and i can talk about things online to fellow mental health sufferers than i can to mental health professionals(due to past negative experiences with them that make it very hard to trust and the tendency they have to extrapolate wrongly on a surfeit of information due to limited interaction and often not really listening)