Newbies to the site will almost certainly get confused and probably even upset about those titles. Keeping things clear and simple is important. The idea is to tag someone with a title so they can show their pride without needing an immortal to moderate them. The last thing anyone needs or wants is people asking "why is this guy Fytrysk?" and then whining about how they want the title as well and don't feel like they should have to pay for it.
It would be excellent if those who donated not using the description could have their donations tracked and be automatically given a title based on how much they have donated over the last six months-year.
It could run along the scale of contributor, generous contributor, noble contributor.
For those who are on the subscription, it would be best if you could possibly track time they have been donating? Either that, or perhaps they skip one either the first or second title, waiting for the second donation to hit before they get the noble title if they only skip the first. The point being that you don't want subscribers to decide to donate irregularly just because they want the "better title."
Perhaps if someone has been donating for a long time or has donated a set amount they can get a few special privileges such as creating their own title in place of the mortal one, but such things should be limited for the sake of efficiency.
The argument about immortals and the titles brings up a valid point. The last thing the staff needs is something to cause a further rift between them and the mortals, especially with the "heated discussions" that break out. The attitude described there could so easily be brought about here if immortals are singled out for not donating. Donations should be appreciated, not used to levy special privilege to mouth off.