Not so much inexplicably. This is common to nearly every indexing system intended to support text search. You won't see punctuation characters being indexed by

Not so much inexplicably. This is common to nearly every indexing system intended to support text search. You won't see punctuation characters being indexed by most systems. Tokenization, lexeme normalization, and all that. It does make certain searches nearly impossible to perform, but the case is rare enough that the average person - even amongst developers - doesn't get stuck all that often.