Why not? What's the reason? Does ebay "deliver" search results on autocorrected searches to big sellers for a price? Is it a service they provide that we don't know about?
I ask because autocorrect can clearly obstruct searching, especially for clever or for less conventional, or less conventionally spelled items. Quotes doesn't really help as the word sequence prioroty is often invoked needlessly narrowing the reslults.
Can anyone explain why there isn't an on/off toggle for AutoCorrect?