if you really dont care about your score, then it doesnt effect you whatsoever leave people alone.
That's absolutely not true.
People shooting second accounts in remote areas instead of fighting othe rplayers DO affect everyone, even those who "don't care about score".
And it's a slippery slope leading downhill very fast. It's setting bad standards, expecially for new players. Look at EW where such things can lead to.
Also keep in mind most of those actions aren't even about score but about getting perks quick & easy without any risk -> try to circumvent gameplay limits set by HTC for a good reason.
If shade vulching for perks is okay... maybe blocking SB's too? Or taking command of enemy TG's to prevent them from evading your buddy's bombs bombs?