Why isn't HK47 a bounty Hunter or scoundrel?

Because he is neither. In the game he's an assassin droid programmed to serve one person, he doesn't do it for credits

+1

He isn't a hunter for sure, and I think he's a little too murdery for the 'scoundrel' personality

I really do hope he's on the list for reworks, because he's currently like a leader ability and little else. He should be offensive gold.

He did like to talk about killing a lot, and does give a significant boost to droids killing, but it's also extremely counterable

Is there a reason he comes up if you text search for bounty hunter?

You could argue that he can be a scoundrel, but he isn't a Bounty Hunter because he was a personal assassin droid for Revan. You couldn't pay HK to kill someone (although he might have killed just because he liked to), but basically he didn't offer his services to the highest bidder.

As for the reason why he comes up when you search "Bounty Hunter" that's just a glitch

"STRIKEBOMB;c-1515130" wrote:
You could argue that he can be a scoundrel, but he isn't a Bounty Hunter because he was a personal assassin droid for Revan. You couldn't pay HK to kill someone (although he might have killed just because he liked to), but basically he didn't offer his services to the highest bidder.

As for the reason why he comes up when you search "Bounty Hunter" that's just a glitch

this is probably the most accurate explanation.