I would assume that Crash means their personal religious beliefs. Certainly there are Christians who BELEIVE that Christianity mandates a creationist position.
I would add that while there might be a few people who are skeptical of evolution on "scientific" grounds (generally these people would be rightly considered cranks) that is not the same as beleiving in creation which is a religious position. Creationists by definition must believe in creation.
I must admit that to the best of my knowledge most creationists and anti-evolutionists - even those with scientific qualifications - do seem to adopt the religion first and then appeal to "science" as a rationalisation. Jonathan Wells, andJohn Baumgardner are clear examples. Moreover all creationists and ID organisations that I know of seem to be essentially religious in nature (even the supposedly non-religious IDEA clubs began with a rule that only Christians could be officers of the clubs !).