I don't agree with you. Apart from anything else, since when can you only make posts on here based on facts? Since when are opinions not "fair comment"? Silly opening line from you.
There's been much speculation about PSG not being able to afford Mbappe (and Neymar for that matter) without falling foul of FFP, and I agree that was all conjecture and wishful thinking. But the post you replied to made some intelligent comments about their wages structure and cost base vs revenue stream going forward, which I think were pretty sensible and didn't at all deserve your "you haven't got a clue" tone in your response. Sure we don't know what commercial deals PSG have in the pipeline, but we do know that FFP will stop them from including inflated "sponsorship" revenue from related parties. And we also know - from our own experiences - how difficult it is to profitably offload players on huge wages.
As I say, it was all fair comment.