Invalid 76561198067297038 (=pb= Amazing_Horse)

I'm not sure if this goes here, but this user threatened to hack me and I don't want to take any chances.

User who threatened me:
|steamID: =pb= Amazing_Horse
|steamID32: STEAM_0:0:53515655
|steamID64: http://steamcommunity.com/profiles/76561198067297038
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198067297038

Me:
steamID: Splint Chesthair
steamID32: STEAM_0:0:9321826
steamID64: http://steamcommunity.com/profiles/76561197978909380
steamrepURL: http://steamrep.com/profiles/76561197978909380

Chat:
http://oi50.tinypic.com/21b83kw.jpg
http://oi45.tinypic.com/1q6494.jpg

They added me for a trade. They didn't like my terms and I didn't like what they had to offer.
To be more specific - I was selling a V. Lugermorph and asking 9 keys or 10 in items. In the trade window (which I didn't screenshot), they added 2 keys and a BUNCH of items). I said no thank you. They began the whole name calling charade and then they threatened to hack my account.
I'm not sure if that's against the rules or not, but still - we don't need people like this around.


Chat:
Splint Chesthair: Hello
=pb= Amazing_Horse: hey
=pb= Amazing_Horse: m8
Splint Chesthair: How can i help you?
=pb= Amazing_Horse: can u?
=pb= Amazing_Horse: luger
=pb= Amazing_Horse: v.?
=pb= Amazing_Horse: ???????
Splint Chesthair: Hi sorry
=pb= Amazing_Horse: nah
Splint Chesthair: I am looking for 9 keys or 10 in items
=pb= Amazing_Horse: :O
=pb= Amazing_Horse: overprice...
=pb= Amazing_Horse: its 7-8
Splint Chesthair: Those prices are so subjective - especially spreadsheet
=pb= Amazing_Horse: but ok 9
Splint Chesthair: Many have sold for 8.5, 9 and 10
You have accepted the trade request from =pb= Amazing_Horse.
Splint Chesthair: I dont want to re-sell everything for keys
=pb= Amazing_Horse: lol
=pb= Amazing_Horse: noob?
=pb= Amazing_Horse: its 9
=pb= Amazing_Horse: omg
Splint Chesthair: Not at all sir
=pb= Amazing_Horse: omg
=pb= Amazing_Horse: omg
=pb= Amazing_Horse: bye
Splint Chesthair: I am selling 1 item for keys.. i dont want to sell 100 more for keys
=pb= Amazing_Horse: but are u a noob?
=pb= Amazing_Horse: yes u are
=pb= Amazing_Horse: i think
Splint Chesthair: You seriously? See my bp?
=pb= Amazing_Horse: best
Splint Chesthair: Far from noob...
=pb= Amazing_Horse: no
=pb= Amazing_Horse: join me
=pb= Amazing_Horse: want see how u play
Splint Chesthair: My account is much older than yours and I have more tf2 hours than you.. No noob here
=pb= Amazing_Horse: lol
=pb= Amazing_Horse: how much u have?
Splint Chesthair: LOL SAYS THE GUY WHOS ACCOUNT IS FROM JULY!!!!! LOLOL
=pb= Amazing_Horse: dude my old = hack
=pb= Amazing_Horse: so stfu
Splint Chesthair: HAHAHA Your bp is worth like 1 bud
=pb= Amazing_Horse: good joke
Splint Chesthair: LOL
=pb= Amazing_Horse:
=pb= Amazing_Horse: bye
Splint Chesthair: 2 bills, 1 v luger are only things worth anything
Splint Chesthair: scrub
=pb= Amazing_Horse: i can hack u and we will see
Splint Chesthair: Naw no thanks
=pb= Amazing_Horse: then u are like me i will laugh about u
Splint Chesthair: You were the one who started this
=pb= Amazing_Horse: say bye from your acc .....see ya in your new
Splint Chesthair: Sorry you dont like my trade terms.
=pb= Amazing_Horse is now Offline.

No scam here, just a butt hurt twit who doesn't like your price, and as far as "hacking" goes, I would be surprised if he can spell it correctly

Thanks for the reply, and that's what I thought.
I doubt they could do anything if they tried. But it's still definitely not a joke to me and I take threats like that seriously.
So I guess it's just a violation of the unwritten 'don't be a xxxxxxx' rule.
Thanks!

Sorry - this is just a childish threat. I'll be archiving this as it is not a scam/hijack attempt.