No kidding!

Please.  I'm beginning to wonder if you and others here know what it is. 

Let's make it easy for you.  

"Ad hominem attacks can take the form of overtly attacking somebody, or more subtly casting doubt on their character or personal attributes as a way to discredit their argument. The result of an ad hom attack can be to undermine someone's case without actually having to engage with it."  Yup.  That's pretty much what was done - casting aspersions on the extent of LoL's knowledge and questioning whether or not he was drinking.

Never once was his premise called into question - just his knowledge...

Do you understand now?

By the way.  Insult is just as nasty.