First off, Holy smokes Teelk! It's been a long time glad to see you back on the boards.
And I'm not real sure if it happens on all of the dark themes or not. So far I know it is the Blue and green ones. And you are correct. I can't see wanting to ignore ones friends either. It was just something that was brought to my attention while I was working on a girls wesbite for her. Then just to verify it, I went and looked at mine and it was the same way.
I don't really think the girl was trying to make it so she could ignore her friends. I think what she was after is, annoying users. So if Joe Shmoe was giving you a load of BS in pm's and on the boards, you could simply visit their profile and click Ignore user. Wether or not the person is your friend, the ignore button does not show.
"Don't gain the world and lose your soul, wisdom is better than silver and gold" -Bob Marley
If you build it, I can break it! ~ Whispered in the tone of the movie Field of Dreams.