We agree that breaching the salary cap rules is performance enhancing.
One thing that is certain is that neither you nor NS have provided any evidence to support your assertion that breaching the salary cap enhances performance, indeed you haven't even provided any evidence that greater spend on salaries in the rugby premiership is associated with better performance. I, on the other hand, have provided evidence that rebuts that assertion.
As a general principle, I don't agree with making up punishments after the fact. If it's not a sanctioned punishment, you can't apply it.
Good - I agree with you.
If you ignore the salary cap, you can afford more and better players.
Which is effectively saying that if you spend more money on salaries you can afford more and better players, and therefore presumably will achieve better results in the premiership.
Problem for you is that the evidence doesn't bear this out. So in the year where we have the stats (and one of the relevant years for the Saracens fine and points deduction) the top spending club (Harlequins - £14.2M) finished 10th out of 12 - so much for their ability to buy more and better players. Exeter, who topped the table spent £12.1M and were mid table in terms of salary spend.
So all those millions of pounds that the EPL football clubs spend are wasted? Liverpool would still be at the top if they cut their wage bill in half?
But we aren't talking about the extremes you might see in football. The extra spend on salary that broke the rule for Saracens is about 5% of their total salary bill, not 50%. And actually that additional rule breaking spend hardly shifted them in the salary spending rankings - without it they ranked 4th, with it they leapfrogged Leicester into 3rd. Still ahead of them were Wasps (who finished one place below them) and Harlequins (who finished none places below them).
But actually you can do that thought experiment as the top spending team, Harlequins £14.2M, spent almost exactly double on salary compared to the bottom spending team (Sale - £7.3M). Problem for your argument is that Harlequins finished 10th, while Sale, spending only half their amount, finished 8th.
Come back to me when you actually have some evidence to back up your assertion.