I've just done an advanced search on a poster (just sheer nosiness on my part)
A thread in OTBT was included in the results with their 'normal name' showing as the poster name in the results.
When I clicked on the thread they had actually used a name change for that thread so presumably the thread should not have been included in the search results.
I'm not going to include a screen shot because I don't want to highlight the user - is it a glitch or is it meant to happen.