>What do you think would be their reason for such behavior? There are lots of reasons. They vary from mundane positives to negatives. These ideas are off the top of my head in no real order; - It could be a hobby. - It could be to manipulate the userbase. - It could be to covertly advertise things. - It could be their full time job as a human intelligence operative. Would I be concerned? That would depend on what kinds of things they are posting. Would I think it's just a bad case of autism? That would depend on what kinds of things they are posting. At the end of the day if their content is not obtrusive or harmful and if they don't treat their subs like some kind of fiefdoms I wouldn't give a fuck and would thank them for providing content. I wouldn't be able to abide them if they were censorious. If they are not posting individually identifiable things then their usernames should be linked with a common flair or something if they're ok with it. I would hate for a random person with an unusual hobby to have some other nut on the Internet attack them IRL. It would be a weird ass hobby though.