Pedantic

I have yet to determine why, but for some reason, numerous posters on the Doctor Who website always use this word, as in "I don;t mean to be pedantic....but blah blah blah".

Only reason I've come up with so far is maybe because they are British?

p.s. here is the definition:

Adjective
pedantic (more pedantic, most pedantic)

like a pedant, overly concerned with formal rules and trivial points of learning.
Being showy of one's knowledge, often in a boring manner.
Often used to describe a person who emphasizes their knowledge through the use of vocabulary.
Being finicky or picky with language