To some extent, I would say yes.
I have two sunkissed okeetees from Kathy Love. These guys not only bite and strike, but the male will bite and chew, just to make sure you get the hint. If he's in a particularly bad mood, he'll continually strike at the plastic walls of his container, trying to get at you. (They were actually a bit calmer when they were younger, especially the male.)
I don't handle either of these two without gloves.
If you talk to other people (Rich Z, for example), you'll find out that the sunkissed okeetee line in particular is aggressive and high-strung.
That having been said, a friend of mine has a half-sibling to both of them (different mothers for all three) that is your standard cornsnake temperment and has never bitten. Furthermore, the sunkissed okeetees are more aggressive than the okeetees despite coming from the same line, but even some of Kathy's okeetees can be pretty aggressive, or atleast so she said back when I asked her about my male's attitude. She also did say that they tend to calm down as adults.
Goodluck.
-Kat
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"You keep WHAT in your freezer?"
"Mice. And rats. If that bothers you, I can call them 'cows' instead."