In general I have no problem with DLC - main developer or third party created. If the base game is pretty much complete its OK for me to pay for expansions, extra content like maps/cosmetics/chapters in story - you name it. Why not? Its common sense to pay for something that was worked on, and I prefer on going support in form of DLCs than new iteration of game every year.
As a flight sim gamer I buy third party DLC content (planes, scenery) for DCS World or Prepare3d quite often.
What I do have slight issue with is early access games with dlc or anything that would be consider pay for advantage.
