Yeah dude... that's kind of cheating.
I agree in principal with you. Having a consistently poor connection is kind of inconsiderate, but not against the rules.
But I think a trap you are falling into here is to become frustrated that others don't follow the same self-imposed rules that you do.
As an example, I have a personal rule that I won't pop another Cmdr's ship without their permission (eg agreed fight to the end). I've done it twice, both asked me to kill them. Usually if I can get their shields down I'll retract hardpoints, and only begin firing again once their shields are back up.
But I don't expect the other player to follow the same rules. I try to make it clear what I'm doing and most get it, but some carry on. I remember losing my FDL to a Cobra once because they just continued to fire on me (it took a while).
If you truly have the killer instinct & are sufficiently motivated to win any engagement, you too will use any advantage within the rules, be it dropping to solo or whatever. If you draw a line you have to accept that someone will draw their line further than you.