I think this could be the result of 2 things.

1) This is looking at mentions, so you don't have the context of how 'MySpace' was used, just that it was mentioned.

2) There are, I'm sure, many applications that are completely not well thought out, don't make any sense, from people who don't know the industry and still think MySpace is a thing.

The context might have been "X is like comparing MySpace to Facebook" or some other historical reference.

It would take just one mention for that blip. The y value looks to be 0.02%.