Who this acc belong to and why im logged in?

For contest in the last 2/3 days i was trying to buy stuff on the poe trade site and i couldnt tp in HO to buy the items i needed i tought it was a bug and i just couldnt for the moment, so i just used the ingame market so np, i tryed again today and for my surprise still couldnt, but than i realized wait maybe im not logged in stupid me, but in fact i was logged in... just not in my acc, so how the hell did i log in here?!?!? i have no recall of logging here it must be a bug or some automatic thing with awakening poe trade or other tools or honestly i dont realy know, was just going to post it here since it might be a bug. gonna loggout from this acc right now.