Flyertalk is a travel site, not a credit card board. FlyerTalk card discussions are organized by program, not by vendor. Chase is an affinity card issuer for three airlines and three hotel chains, but these companies use other card issuers in other countries and primary discussion of co-branded cards belongs in the airline or hotel program forum.
Most "Chase" threads in Credit Card Programs are not about Ultimate Rewards, they are about the process of applying for cards to earn new account bonuses, about churning (and these threads have a high level of repetition). There are only 37 threads in the past 12 months with "Ultimate Rewards" or "UR" in the title.
There is a different character to the discussions about Ultimate Rewards vs Membership Rewards or Club Rewards. Much of this is dictated by the simplicity of Chase's program: with only one airline partner per alliance, no history of transfer bonuses, and no international versions, there simply isn't as much to learn. (This is an observation, not a criticism. It's a nice program.)