Hi all,
i would agree with CodersGuru,he never cheated here,he made mql4 programming lessons etc.
The code of this indicator is exactly as he says,moving average and it is not wrote to reapint the past.
Maybe we should try to see how it performs on higher time frames like 4 hours in live testing.Maybe mt4 have some problems with calculating our indicators and maybe it is only related to small time frames.

I dont see any other reason why it should repaint from what i know about mql4 (not much0).