Have you considered that payed relays are potential censoring hubs?

They will add filters which are whatever they want those filters to be by ideology, etc.... So... Twitter again... I keep reading messages about it and I can't understand how absurd is this line of thought...

If you prefer to have more control and add your own filters, I will suggest you create your own relay and your own filters and other features that relay may offer, if you have Umbrel or Start9 they come already with a relay you can install and run in under a minute.