Robbmonster said:
Effects will make lousy playing sound better
Yes, they will.
I suggest an experiment...
Pick a chord, any chord. Hold it in such a way that your fingering is really sloppy, with a couple of muted and dulled strings.
Strum a few times, first clean, then with some effects on it (overdrive, fuzz, chorus, whatever)
Then come back and try to say again - with honesty - that the effects did absolutely nothing to hide the mistakes.
If, after trying it, you or anyone else disagrees further, I will just shut up about it.