It’ll be a profile field set up in wp-admin. Look for “Profile Fields” under the “Users” menu, and delete it.
Thanks for your prompt response! I haven’t added any field that says, “Write down whats your favorite hobby is”, and I have also looked into “Profile Fields” under the “Users” menu, but there’s also nothing there?! So, I don’t get it where’s this field coming from?
My guess would be a theme or another plugin: look at google.
What plugins are you running.
BP Xtra Signup, Achievements, All in One SEO Pack, BackUpWordPress, BP User Profile Map, BuddyPress Album, BuddyPress Community Stats, and loads more, so I can’t really list all of them here. Do you think that some or one of the plugins could create this strange field in the registration form by itself?
After much searching by @karmatosed and I, we’ve found it’s the https://wordpress.org/extend/plugins/wangguard/ plugin. You’ll need to contact the author for support.
So, if I try to disable it do you think the strange field will go away? Anyway, I’ll try to deactivate it now and see what happens. Thanks!
You’re right, thanks a lot! I have just deactivated the Wangguard plugin and the strange field disappears straight away. I’ll contact the author for support asap then. Thank you so much again, you save my day 
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Hi again @djpaul, thank you for your help last time. Now I run into the same problem again because I decided to reactivate the Wangguard plugin again to see about the strange fields & text would show up again, which it did. So, I decided to delete the plugin completely, but the funny thing is the strange fields with the text, “Write down whats your favorite hobby is (required)” are still showing up on the registration page?! So, I don’t understand….Do you know some solutions to this? I thank you in advance!
My website is, http://buddygalaxy.com/.
