It's not one or the other, on regular channels both situations can happen.

So back to the same idea again, if you remove one possible kind of interruption, you should have less rewards on your hunt. Still OK?

Because the player using pk and having to get rid of his karma is not cutting into their own silver/hr?

No matter what you say, pk and ks are the exact same kind of "forced" competition. 

I still dont know where u all get engaged in forced pvp all the time. Last time I was PKed without fault of my own was years ago...why is still still a problem? Maybe its time to consider if you are the reason ppl rather lose karma? 
If its on a grindspot, just go into privat hour...if its horsetraining? go into a savezone... 

Honestly I'd love if there was 1-2 PvE servers so all the people who refuse DFS or get mad about people activating PK can chill there together. Additionally move every person who is afk for longer than 10 minutes on a nodewar/siege server during nodewar time away so they don't suck up the performance by feeling the need to afk fish on Serendia 1.

Many of the PvE enjoyers here seem to forget how much you can get griefed at spots like Mirumoks without the other person activating Alt+C, be sure people will always find a way to annoy you no matter how child proof you're trying to make it. Most of the unpleasant interactions I had with other players weren't people killing me but griefers running into my rotation, activating the Mirumok pillars ahead, pulling mobs to my horse, abducting fish chars on a boat, standing in the middle of the road so autopathers get stuck etc.

Killing someone is already a much bigger risk than getting killed and another karma change is on the way to make people even more hesitant to activate Alt+C, don't know where you find all the evil people hunting you down but at least on EU that rarely happens. Sure, someone might knock you off the horse but if you plan to go afk for multiple hours I can show you at least 3 long safe zone routes with no chance to be kicked off and better performance than running around Heidel. Getting kicked off while questing is barely an inconvenience, just mount up again and go on, I doubt anyone would follow you for hours unless you immediately chat pvp them.

If you're simply refusing to accept there's ways to prevent getting PKed I'd be more than happy that everyone who gets mad about someone possibly killing them have their own server or even server group because that would increase the performance and have less griefers on normal and arsha servers. It's not like there would be a lot of player interaction currently anyways.