You may be more generous than I, but I think that most people who misuse "literally" the way they do have no idea that they're being ironic, subversive, or hyperbolic with their usage of the word. I think they're literally ignorant as fuck. (Side note: I will admit that your putting forward the possibility of this usage of literally as an extension of the hyperbole to which it is mostly added made me think. And if a different type of person in a different way were using it, I might think that was an actual possibility. In actuality, I think you're just being overly generous. But, that's not an unadmirable trait. So, 'tis all good.)

While the creation of the word "umbraphile" was a not unintelligent attempt to create a useful word for people who enjoy eclipses. And, despite it being the "correct" Greek, Tom's ecleipsophilia or eclipsophile read as wrong. The former just looks like you misspelled the latter and the latter looks like exactly what it is: slapping the word eclipse onto the suffix "phile". Which, again, in Greek may be fine, but we're making English words here and umbraphile is by far the more pleasing creation. Plus, even if technically wrong, was born from careful thought.

See the difference? There is one. And, in my never to humble opinion, it's an important one.