Edit: Just tried to enter 100.000.000 MOON in the wallet's amount-field for sending. But there are only 8 digits possible to enter. So 99.999.999 seems to be the limit, indeed. My question now is, where to find this limit in the code?
I don't know any crypto with higher limit. Probably it's better not to change it. Price will be 100 times higher, and this limit will not matter then.
Right. So it seems that at the moment it is only a "luxury-problem".