I thought about this and decided to make a thread explaining a few things to people and was hoping others can add to this.
It seems a lot of people are mixing stuff up when discussing either game. What you need to remember is they are 2 different games. Saying that Dark Souls is a sequel to Demon Souls is wrong IMO. And here's why;
No where in any lore or on any other site does it mention that Dark is a sequel. Demons starts in Boletaria while Dark starts in Lordran. No where does it say that they are the same world, (planet). How can they be connected? In Demons, you either sleep with the Old One or you cover the whole world with the dark fog. In Dark, you become keeper of the fire. Two totally different paths. Also, if you look at the videos being posted about Dark, they sort of show the same areas as the 1st one. And, since we ALL know that there is a Demons 2 coming, how can Dark be related to them? For all we know, Demons could start in the Old Ones world.
Now about the stats, Luck is a Demons stat where in Dark it wasn't put in. Creating a thread asking for luck to return wouldn't fit as it's not a Dark stat. As it was explained in that thread.
Forgot some of the things I thought of but you get the point. Add anything you think would fit in this thread.
Also, I would just like to say a lot of people lately have been spamming and derailing threads which is against the rules. This is a warning, do that here and I WILL REPORT YOU.