I like the idea. The unfortunate part is that the EA came out a week and a half ago. Most people haven't even switched to live accounts yet. Plus, each of us has different ideas of what is too risky for us to even think about trading with.
I think over time, you will begin to see a consensus of which settings are valid to change and whatnot.
But I will go ahead and start with the very first rule for new users.
1) Never put more money in your account than you are willing to lose.
Ok, here is rule #2
2) The best idea for new users is to triple your initial investment and then pull your initial investment you made out. You are now playing with money that you earned.
Now if you are a previous investor, I wouldn't follow step 2. The more money in your account the less likely you will get hit with a margin call. But a lot of new investors tend to emotionally attach themselves to trading and panic when the chips are down. It will be a lot more reassuring to a new investor to know that your original investment is now safe in your bank account and you are now playing with "extra" money. Less chance for emotions to interfere.
There are lots of other rules for new investors to follow, but these two are how I started and they served me well.