That's a pretty good question. I'd say if I see anybody going on a rampage with any of the three pistols (Snub, Boltok, Gorgon now that it isn't OP and as a result less fun

) on server/off host they will automatically earn my respect.
Of course if it's a
Snub people will cry "MOD! HOST! HAX!"
If it's a
Boltok you'll never hear the end of "You pre-activing $$$$$$!"
And the new
Gorgon has "OMFG STOP CAMPING" written all over it.
It's no different with grenades though a killing spree with
Ink and
Incendiaries would take equal amounts planning, timing and skill plus it's hilarious to witness. With the
Boomshot nerfed (decreased blast radius and less cluster explosions upon impact) to the point only Longshot specialists could reliably squeeze a kill out of it, I guess that's a fair option IMO. Speaking of
Longshot they are in the clear since 90% of the time a solid sniper only needs to camp for a second to get a kill. I can't hate on that.
Mortar and
One Shot are also contenders since you can spot both a mile away. Blind fire kills with either are epic to watch.
Scorcher is 50/50 since they beefed up its stopping power to the point where it can slow opponents to a crawl even in mid-roll. I had so much fun maining it alongside a regular Lancer in KOTH games. Oh, and any
Sawed-off user well versed in hit and run tactics to the point where he or she can bounce away from a missed shot, reload, bounce back and kill is worth dying from. The gun takes way more skill than people realize in 1 on 1 encounters especially against Gnashers, Retros and Hammerburst.
I personally couldn't care less what someone thinks of me when I kill them. If it's in the game I'm going to use it.