Overall I think the biggest devaluation I see is for high spend credit card users, which is interesting given a lot of the predictions were that the opposite would happen and credit card spend would be rewarded. The maximum 25,000 SDC and 10% rollover from credit cards is a huge nerf.

At 1,000 SQC per $5,000 spend on premium cards, benefits max out at $125,000 in spending. This will decrease the amount I spend on these cards significantly.

So I guess a common path to SE for high CC spend people will be:

$125,000 CC spend = 25,000 SDC
12,500+ SDC rollover (10% of SE threshold)
= 87,500 SDC needed = $21,875 in qualifying spend.