I disagree - I'm a second time visitor. My first trip ever was December 2018, and we are booked for this September. Any guest could learn the basics of staying onsite vs offsite, booking windows, and what rides/ADRs to book first in 5 minutes of reading any blog or Facebook post. I knew before I paid my initial $200 deposit we needed a longer trip than 4 days (I don't know anyone who takes that short of a trip to WDW but we live pretty far away). If someone is willing to throw thousands of dollars towards a trip and not do the most basic research, that's on them, not Disney.
I agree with the poster you replied to, guests staying longer should be rewarded for doing so. There should be benefits to staying onsite and for a longer time, and it does not bother me that someone staying 14 days gets a shot at FP+ before me - they earned it!
Whatever comes of this rumor of paid FP, I will be very annoyed if someone staying 2 nights offsite gets better FP than me staying 8 nights onsite. That just wouldn't make sense for Disney to do as a company, because I for sure would cut down my trip time and stay offsite if I have the same chances as someone paying to stay at a Deluxe resort for twice as long as me onsite.
A few people have mentioned CL FP+ books at 90 days, Onsite gets 75 days, Good Neighbors get 60 days, and Offsite gets 30 days...that sounds good to me.