The AK-47 is capable of getting out more rounds in less time than a traditional hunting rifle. So you'd be able to shoot the crap out of something a bit easier. So if that was your plan then the AK-47 is ideal. Otherwise... not so much. That was all.

You do realize the vast majority of AK-47s (at least those available in the US for less than $10k) are semi-automatic, right?

Doesn't matter. Parent post made no mention of what type of AK-47 they were using and where. The fact remains, AK-47s can be full-auto thus are capable of putting out more rounds faster. If you would like to go with the assumption that the parent post was referring to only a semi-auto AK-47 (in the US?) then we can certainly agree that it would not mess up a deer any more or less than a traditional hunting rifle. I'm cool with that. ;)

A typical AK-47 is select fire. So someone hunting deer with a fully automatic capable AK-47 would likely set it to semi-automatic.

So good for poachers then :-)