I'm pretty sure the devs check in from time to time; they're invested. And there has been some evidence that our bickering has been effective. Ex: there were several threads in Civ IV discussing how pointless the explorer unit was, when Civ5 came out, it was omitted and the scout is the only scouting unit and has no upgrade... so now we complain about that
Thanks for the endorsement, regarding sharing/splitting founder beliefs I'd vote no and no, there should still be some incentive for Theodora to
found a religion as opposed to piggybacking, and the
founder belief seems appropriate, same rationale on exclusion from enhancer belief. The only tricky part is the reformation belief if both Byzantine and the religion's founder go Piety. In this case, I'd again vote that Byzantine should have an incentive for founding, and would have to forgo a reformation belief. If this is too harsh, first one to reform gets to pick and second would unlock the reformation belief already assigned to the religion.
Here's another proposal that may make everyone happy, and I prefer it for historical significance (at least for the celts):
switch the traits of the Celtic Pictish Warrior and the Byzantine African Forest Elephant The African Forest Elephant would now earn the empire faith for defeating enemy units and the Pictish Warrior has an area-effect combat penalty to enemy units. Furthermore, I'd recommend that the AFE earns faith equal to the FULL strength of the enemy unit (as opposed to the PW currently earning half) but much like the current system it loses the ability with upgrade.
From the Byzantine perspective, you now have an additional, very strong out to accumulating faith early, but lose it before Renaissance so they're not stepping on the toes of the other zealot's UAs and UBs. There's still a sense of urgency for the Byzantine player to found a religion, which there should be; the Byzantine player should breath a sigh of relief when they find a religious mountain (to which there are several) or find a religious CS, otherwise consider a run at SH or seriously consider Piety (which is always an option), and to either supplement any of these outs or to bail them out when all these options fail, there's the UU. This is also why I'm strongly opposed to the all the various suggestions that guarantee founding a religion (Free GP, allow them to found even if none are left.) I also am opposed to the suggestion that Byzantine should have extra advantages in the piety tree because no other civ is all but forced to pick an SP tree and it drastically effects gameplay, creativity, replay-ability, and overall enjoyment when one of these choices is made for you.
From the Celt's perspective, the current PW is overkill. The forest bonus is enough to ensure that you get what you want out of a religion. The awesome history of the Celtic/Gaelic/Welsh is that of a peaceful, agrarian culture who's not out to instigate or infringe on another culture. However, if you oppress them or try to take their lands, they will !@#$ YOU UP! Bring your advanced technology and superior numbers, it only gives them better things to shove up your behind and more behinds for the shoving. The area-effect bonus allows them to do just that;