Hi there,
Not looking to stir things up here, but just wanted to comment on The Bramble's earlier comment about indicators being ineffective. This generalisation is perhaps unjust because there are traders that use a combination of indicators as part of their trading system, and they are consistently profitable.
I think the problem with a lot of new traders (I include myself in this category) is that they often misinterpret what indicators are actually telling them. Or rather, what they think the indicator is telling them is over and above what the indicator is actually telling them.
I'll give an example from my own experience. I used to use the Parabolic SAR as part of my trading system. My rules were simply, if price is above the PSAR then price is indicating an uptrend, and conversely if price were below then it's in a downtrend. The reason why I used the PSAR was simply because I wanted some kind of filter to go long or short. But, it wasn't until I actually started thinking about how the indicator works, that I started to realise what a big mistake I had made. The PSAR works by simply plotting a spot where the last swing high/low is on the chart. If price were to move past this spot then it will reverse and repaint the PSAR spot to the opposite swing high/low. That's it. It doesn't do anything else. Therefore, the assumption that when price is above the PSAR it's in an uptrend was completely my own. The indicator doesn't actually tell whether price is in trend or not, rather, I had imposed this assumption onto the indicator itself.
Another prime example is the 200EMA. Some traders will determine whether price is in an uptrend or downtrend based on whether price is above or below the 200EMA. But this all depends on what TF you are trading. For example, if you are trading on 1min TF then traders need to realise that the 200EMA only refers to the 200 1min bars before it. Nothing more. A trend is defined as a series of higher highs or lower lows. Price can make an uptrend even if it were below the 200EMA. So again, assumptions from the trader are being imposed onto the indicator without any real justification behind it.
So what does all this mean then? Well, I think there's no harm in using indicators, so long as you don't fall in to the trap of interpreting indicators the wrong way and deriving information that is above and beyond what the indicator is actually telling you (you see this countless times in the forexfactory forum). It was only until very recently that I realised this point, and I couldn't believe how stupid I was for failing to realise it sooner (I come a philosophy degree background, where skepticism and coherent thought are run of the mill). Technical indicators do work if you know how to use then properly, and I have seen BBMAC use them profitably.