At time of writing the number of petitions over the lifetime of the system that reached Parliament and then led to law change or action stands at 0. Its a pointless PR exercise in looking like they care. The law on it doesn't even require it to enter the commons, merely to be debated in some back room for half an hour by 3 or 4 mps.
I did see that if you counted up EU stats as a single set of figures instead of country by country the EU would count as the 2nd greatest economy in the world and comfortably ahead of the third. Bet there would much more support for rejoining if that was widely known, it'd show how little chance there is even in principle of making international trader UK work well enough to offset the loss.
I'm only recently arrived here but already the tech stack seems significantly more stable