Disliking meetings and reading in a crowded environment doesn't seem like much evidence that you're neither introverted nor extroverted (except that you're not one of Those Nasty Extraverts that keep supposedly fawning over meetings), which doesn't seem like much evidence that the introvert/extrovert split isn't helpful. I can't enjoy parties or meetings, prefer to read in silence and work alone.
A fun article by Alan Jacobs. Check out the paper he cites, if anyone finds an non-paywalled version, I'll edit in the link here. HT for the link to Michael Bloom.
I really do need to find more written by this author. But while I certainly do very much share this sentiment I have a hard time figuring out how common it is. After all people don't look good saying they "don't like meeting new people".