The double points thing is a fallacy, it was join platinum not to lose points.
From the third season at CoMS it was realised that City Card holders could get more points than Season Card holders, so you got the same points no matter what card. As home games were 10, 20 and 30 points this was always going to be more than 190 and 2005/06 it was 420, and another season around then 190 plus a manula adjustment of another 150 later in the season.
Therefore rather than double points for Platinum, it is more Platinum is the norm as far has points is are concerned for season cards, and Gold is half points.
The same with home cup games, the last 5 before platinum was introduced were worth 100 points each, but on Platinum they are worth 20 and Gold 10 now. Whilst 100 was unusual, points had fluctuated between 20 and 10 and in the couple of seasons before Platinum, however Arsenal in the LCQF in 2009 was 50 points and so was Timasora the start of the season after. So Platinum doesn't mean more points for home games in the cup when you average it out compared to precious seasons, at best it is close to parity, and less than half for Gold.
Away points were typically 20 before Platinum, but not all, and the 30 points games were not doubled, but most were, and now none are. The main boost was for the cup schemes which had been 25 points or 50 in previous seasons and went up to 300/600 for the lot, bit both Gold and Platinum benefit form the boost compared to previous years.
I opposed platinum but we got apologist on here saying it is choice, you know the experts who never go, it was clearly just a tax if you wanted to go away or to finals, and would mean everybody lost bar the club raking in their £0.5m for 10k fans who have it. It was worse for kids as in the SS the £95 tickets were increased to £140 + platinum doubling in price for an under 16 in the space of a year.
In rough figures had 8k points before platinum, and have gone less since with another 17k points making 25k.
Without platinum I would have had 16.5k, but I doubt there is anyone with that many point who has never been Platinum or Superbia, so I am not stealing any bodies ticket.
The real issue is the lack of tickets allocated to points, which has been chiselled away since 2007/08, and before that no one gave a shit about point as there was only demand for 1 away game a season.