Definitely not a disagreement here; there is really no right answer, just a right answer for each buyer/user. I wanted a tall skinny. I researched the tall skinny. I bought tall skinny. But along with it I got a 129 load index and a tire size which is literally not on any chart. That has made basic things like 'what psi?' an interesting and long researched and discussed topic, not surprisingly, the PSI which works best for these tires also is the one that feels right, and also is the one which controls heat adequately. Since all of us on 35s are far outside the norm for this board it is interesting to discuss the impacts of decisions taken and not taken. And the consequences of them.
For example, I did not consider a 129 load index a showstopper. But then I went to mount my tires (I have a homemade balancer and tire irons, a box of weights, balance beads, tire lube and so forth - all cheaper to acquire for a lifetime than even one paid wheel mounting, but I digress), and I couldn't, at least not without murdering my rims. They are so stiff. Much stiffer than load index 125, and like 10x stiffer than the load 114 stockers. Now, at the right pressure they are compliant and ride great, but just 2 psi more and they are hard, and 4 psi more and they are VERY hard. My LX can deal on the fly, but for a fixed dampened ride, this might actually be a showstopper. The sensitivity this brand/sku/load index has to pressure is high. I paid to mount them up, and they work great overall, but the data point is here now for others to see. I'm living with the fact they aren't really field serviceable (really, who unmounts a tire in the field - it must be very rare). But now when I look at tires, I look at the load index and it is a factor for whether I look very long at that tire. If it is above 125 (275/70R18 carries this load index, for example), that would have to be a very compelling tire to keep my interest, because there is a known tradeoff for me.