It all comes about because Mormons are urged to give as much as they think they can afford to reach that celestial level of their heaven, yet many of them live paycheck to paycheck. That's not exclusive to Mormonism, but in other religions, they pretty much stick to the 10% rule because they only have one heaven to reach and the amount of giving isn't tied to reaching it.
There's all sorts of wrong there. If I thought for one second that you were interested in a good faith discussion about the actual truth, I'd discuss it with you. But judging by your posts in the past, it's not worth the time.
I'm basing that info on articles from newspapers or elsewhere and talking to former Mormons and personal experience. Having been in a Mormon Temple, I can attest to the opulence that is in there. Carpet so thick it's like walking on a Tempurpedic mattress. Marble everywhere. Stained glass all over the place. Very heavy wooden doors with gold fixtures and lots of other high cost items. And that was only the places they let us see. Who knows what the rest of it is like.
This article outlines how much the Mormon church is worth and it's in the billions of dollars. Some of their temples are on par with the gaudiest of the Catholic and Scientology buildings. The difference is, anyone can go into a Catholic facility so in that respect, the Mormons are closer to Scientology.