@rjen, I was just trying out that css adjustment in curve you posted above. While it did seem to cure the alignment issue in that particular scenario, Side panel to forum index.
I you instead just have promoted posts etc on the front page then the alignment issue is there as well. Based on that, the suggestion tino made regarding a config option might be an idea worth considering.
Funny how I haven't noticed these strange issues until they're pointed out, now they stick out like a sore thumb. lol..