hi, in the first hand of a game with no reads, IMO, there really is no need to bet 3 streets with King high, after all your opponent has show strength by calling each time and you have no reason to doubt him first hand of a game especially when only a flush draw is all he could legitimately be chasing....
Your c-bet is too weak also in my opinion, for a 1/3 of the pot Ace high may well stick around judging (correctly or incorrectly) for your small bet to be a sign of weakness particularly at these low levels
 

Well, I only play the $50-$100's so I don't know much about the $6.50's.
Regarding your Sharkscope question, I don't think it matters that much on these low limits - as a husng.com member you should already be way ahead in skill of at least 90% of all the players at this limit, so your search would only tell you that you're better than him, giving you now new information ....
Regarding the hand, your cbet is way too small, I make this at least 1/2 pot-size, better 2/3 pot-size - and without any reads with a complete trash-hand, I simply give up when called.
This turn is also a very bad card for you to 2nd barrel - the 2nd Queen on the board makes it less likely for you to have a Queen, so he should be a lot more inclined to call you with an 8 here - and if he has an 8 with a good kicker, I highly doubt that he'll fold it to a 3rd barrel on the river.
Sure it's a mistake calling down three streets with a naked ace high - but don't make his bad play right by bluffing him three streets with a worse hand.  Just give up after he called your cbet and wait for a better spot.
With reads, I may bluff at a turned King - but not in the first hand where I know nothing about this opponent.
Jack

It really isn't normal for him to call you down with ace high so I wouldn't get too worked up over this hand, but I think that a big problem with your play stems from the size of your cbet. You cbet 40 into a 120 pot which is going to cause you to get called by a lot of weird hands that wouldn't call a normal sized bet (80-90). This puts you in a difficult spot because at the turn you will feel inclined to double barrel to push out these crappy hands (like ace high), but at the same time you are going to get called by all the pairs and draws that called you on the flop. I think you should just cbet 80 on this flop then reevaluate on the turn.