I remember creating account there with pseudo-name for a few years. The admin there one day gotten extremely hostile and request me to give then real biodata. I didnt even consider to contribute anything not even simple comments. Just being quiet user. I would even pay annual subscription to have the site access but not contributing like E. Britanica site. Regardless, I have been extremely detrimental to that website with maybe running a multi year hostile anti-Quora campaign across the world. Quora just made an unnecessary enemy user with me. All I wanted just like HN, probe in, read, and maybe comment a bit maybe once or twice a year. Instead their admins turn very hostile threatening to remove my account simply for not giving them real biodata.