I'm not really all that sure myself but at the bottom of the homepage, I think there is an option to post questions. I don't think you can search for users but just click on the profiles of the users you like. For example, if you like their answer to a question then click on their profile picture and you can follow them there. You search for manga ......   reply
24 11,2020
15 followers

lmao

207 people did / 37 want to do