We've both said our peace on the exploit. You and others think double-dipping on both persuasion and combat XP is totally legitimate, and I do not for reasons I've already articulated.
I'm not particularly trying to convince YOU. I'm content to just offer my perspective and let Larian decide what, if anything they wish to do about these situations.
You have some decent ideas even though we disagree on a few points here and there. So you want to know my thoughts about Karma? Well, it's really hard to say without understanding what exactly is the effect it will have.
Is it something which only gives a reward later on for maxing out a meter? (And if you're not either pure evil or pure good, there's no big reward?)
Or is Karma a system to restrict quests and NPC reactions? So do too many evil things and whoops a several quests are locked out? That might be an issue in games with limited quests and opportunities to change your morality. All the games I've seen with such meters have respawns as part of those games, although I might not remember or be aware of some others.
I do not find "Just add Karma, problem solved" to be a convincing solution, at least not without defining what Karma is and what role it plays to solve such problems.
Which is why i find this silly: The only reason this is so obvious at the moment is cause of the limited content. Full release will functionally void all complaints cause ultimately the level differences in the end, no matter player action, will not be significantly different and the functional combat ability will neither.
I don't agree with a "shut up, it won't matter in the full game" stance. You don't KNOW that, and it's completely legitimate to bring up concerns now and let Larian decide if they are valid or not.