The main reason a site might use nofollow relates to scenarios in which that site lacks total control over the links that are added to its pages. In other words, they don't want to show Google a vote of confidence when they don't know whether or not they actually are confident. This is more common than you'd expect; here are a few examples. https://sharemylesson.com/users/beauty8 https://forums.tornbanner.com/user/beauty8 http://www.jkh.cap.ru/forum/yaf_postsm8083_beauty8.aspx#post8083 https://www.jovoto.com/community/beauty8?show=projects https://pinshape.com/users/879766-beautymz#designs-tab-open https://demo.ckan.org/dataset/beauty8 https://www.databazeknih.cz/uzivatele/beauty8-315559 https://www.songtexte.com/user/beauty8 https://www.allfordmustangs.com/forums/member572831-beauty8.html https://soofi.yapsody.com/event/index/572836/beauty8 https://www.slideserve.com/beauty8 https://goodgame.ru/user/1352679/ https://yed.yworks.com/support/qa/user/beauty8 http://the-jewish-przemysl-forum.983740.n3.nabble.com/beauty8-td4027380.html https://beauty8.booth.pm/ https://dashburst.com/beauty8 https://www.youmagine.com/beauty8/designs https://www.thehulltruth.com/members/beauty8.html https://profile-en.community.intuit.ca/users/83d4b746-3a40-416e-8cba-e45d684e47e9 https://communities.sgna.org/network/members/profile?UserKey=cc7bf2b1-3071-4a33-89d6-544a2eeabc72 https://community.aaacn.org/network/members/profile?UserKey=7d21fbfd-44bb-497c-a06a-3e0dbea9b3c0 https://community.acpa-cpf.org/network/members/profile?UserKey=7cb1a316-cbea-4f9c-855a-176bacd0932f https://community.hbanet.org/network/members/profile?UserKey=854feeb4-e168-4630-91b8-d6f57cdcd252 https://community.museweb.org/network/members/profile?UserKey=5a9d7009-cc29-4322-b7e7-8f145c243fb0 https://community.pdma.org/network/members/profile?UserKey=3750be4a-76b7-4a0e-a24d-7243a41d0715 https://connect.nsacct.org/network/members/profile?UserKey=8f2d7d29-554c-444d-866f-d26c71df2834 https://connect.scte.org/network/members/profile?UserKey=cea200fc-3f4c-497c-9b7e-c9901a37627f http://nacma.nacda.com/nacma/new-item/sectiondirectory/profile?UserKey=679d02cb-7b19-40ef-9b30-c68350f095bb https://network.futureearth.org/network/members/profile?UserKey=e20e204a-5ca2-45ba-a813-f04b797fcb86 https://www.acca.org/network/members/profile?UserKey=c9862696-7c50-4135-8638-9a6836892be9