If you want to run it, download and install Cheat Engine, run the script, answer yes to any LUA messages and then run Dark Souls (or you can run Dark Souls first and then the script). You can open it in Notepad should you wish to have a look to see what it contains and how the magic works. I give you my word (for what it's worth) that the script contains no nasties. No more will you experience the pain (and the joy that comes with that) when trying to recover a bloodstain you know holds a lot of souls/humanity.
Warning - Your play might suffer in regards to how clumsy you become though. What it does allow gameplay wise is a less intense experience and zero reasons to be hollow (which may increase PVP player numbers, because hey why not when you don't lose anything). I realise that this can have a major impact on how the game is meant to be played and if you don't like it (many won't and shouldn't) then don't use it. It also prevents you going hollow, so once Human then you'll stay Human. The Dropbox link below contains a Cheat Engine script which will prevent your character leaving a bloodstain - which means your Humanity and Souls won't be contained within the bloodstain, i.e. OK, I know it's sacrilage, but hey I think DS is appreciated enough by now.