Search function oddity

[Jeff7]

I've encountered bugs like this elsewhere, but I figured I'd actually post about it.
I clicked Search, selected FS/T, and searched Titles Only for the term WTB

One result was this:
FS/FT: Big List of CDs, $3 each, free shipping

I see a T, and a B, in that order, but not adjacent - but no W at all. There is no summary either.
How did the forum come to the conclusion that this thread's title contained WTB?

 

[Aves]

I've seen it do things like this before. It's strange but I usually just ignore it.

 

[Jeff7]

Originally posted by: aves2k
I've seen it do things like this before. It's strange but I usually just ignore it.

Yeah, I usually do to. I figured I'd finally ask about it though.