All wealthy affiliate stuff works better with mozilla firefox browsers. When I type in a name in 'browse wa spaces' I get a user name (sometimes more than one, if I don't type in the whole user name and the beginning is popular, say Jeffrey). I do not know why it's not working for you.

When I find a tutorial I find useful, I hit bookmark this page, and the program remembers my bookmarks, lists them for me on the right side of the screen, so I can go revisit them.

I don't know about the pink, never used that.

When you were in the wa space, writing me this message, on the right, you had your activity (people you're buddies with, what they did). But only the last few. If you want to see all of them, from the time you joined, you look under notifications. There's more stuff there, like people adding new resources.