Quixel has recently announced a number of changes to its Megascans subscription plans including unlocking stockpiled points, so you will not lose points anymore.
The biggest thing here is the ability to subscribe to the Bridge and Mixer independently of the library for $9 per month. You have to admit that both Bridge and Mixer are pretty awesome, so this opportunity is really great.
Also, there are new subscription plans: An ArchViz Megascans subscription tier with more scans suitable for this industry, and teachers and institutions can now use the software and a selection of maps free or pay for access to a larger library.
You can learn more here.