Yep. That. Besides answers from support team, you might have someone random, who is aware of the discussed, chiming in.
I’m willing to bet that form alone would not affect the amount/quality of information, coming with bug report, in any way. Nothing stops You from flooding relevant fields with unrelated garbage. And if one did not put efforts into reporting bug on AH properly, nothing would force him to do better, using the form.
Speaking of the form itself, if I did not know what it was, it would have looked quite shady to me.
Lastly, this form looks like an invitation for bots. There are many of them bots out there in the wilds. It would be shame, if them bots decided to report a few kilothousands of not-so-relevant bugs.