Out of interest is that the $100 or $200 Pro plan? The latter offers 4x over the $100 plan. (see Introducing New $100/month Pro Tier - #9 by merefield)
Which model were you using?
How can you justify such a statement without considering the business cost of providing you with that inference?
You have been enjoying subsidised inference and gradually improving peak capability.
It should be no surprise that service levels and prices would eventually have to be adjusted, especially for the bigger models that perform a lot of reasoning and use up a lot of limited compute (whilst delivering significantly improved capabilities)
I can see people might get frustrated, but that’s no reason to make apparently baseless accusations of corruption?