Sometimes you may need to 'deactivate' a validation formula for troubleshooting reasons (or perhaps a client doesn't want to validate a field now, but will want to later). Well, you can leave the validation formula in place, and still have it be disregarded by the system. Just place a [emptyvariable] = in front of the formula. For example:
The active validation formula: @If( Name = ""; @Failure("Please fill in the Name field."); @Success)
becomes inactive when changed to: 1 = @If( Name = ""; @Failure("Please fill in the Name field."); @Success)
I use '1' because it's short. You could use 'A', or 'RemoveThisWhenTheFormulaNeedsToBeActive', etc.