I think it is a great pity that this particular thread has developed such a negative and personally derogative tone. In my (extremely humble and very naive) opinion there is much that could be discussed here that would be very useful for all kinds of traders.
I agree very much with @Trendswithbenefits that there is great potential outside the boundaries of the norms usually recommended to Newbies, but I also agree that there are also potentially grave risks involved for the inexperienced trader that should also be highlighted.
Regarding percentages, I think this is a very overrated and inaccurate way of assessing one's performance. The key issues in risk management are the size of one's actual positions and the parameters regarding stops and targets. The actual equity sitting in one's account is a rather arbitrary and passive factor in profitability beyond the amount needed to comfortably cover margins. Two traders with identical trades will have entirely different percentages if one has 1000 units of equity in his trading account and 4000 in his bank acc whilst the other happens to have all 5000 units in their trading account.
There is value in having some form of matrics to provide some kind of comparability, but this percentage of equity is very loose and imprecise to be used in any narrow sense. I guess many Newbies do have all their available equity in their account since they often only have a small amount and so there is some degree of relevance in this metric.
But I think the real issue here is not so much about percentages as it is about differing trading styles and what can be acheived with them, and what suits which kind of trader, rather than some purely theoretical argument about can 25% be achieved only once in a lifetime or regularly for ever.
For example, personally, I have my own, so-called, sniper trading which I employ when I think there is nothing much going on and I sit and watch the trades with hawk eyes and my "rules" for that are so totally out of line with any "norms" that I would never even talk about that in detail on a Newbie site! But I pick up 5-20 pips without too much trouble when the conditions are right (and that is the key issue with that!).
But the "norms" that we are all familiar with are very sensible constraints for Newbies to focus on and are more likely to keep them in the business until they have found their wings and learnt to fly. Then the deviations from the "straight and narrow" can begin.......
I promise not to intrude here any further, but I really think a lot more positive and open mindedness could actually reveal some interesting and worthwhile features (and warnings) of both short and longer term trading as well as highlighting the amazing versatility of trading styles that the forex business provides.
We are all on the same side in this business............