RE: Third world countries play a major part in crypto adoption
Venezuela is not the only country... In Indonesia any cryptocurrency that has DOGE pair is very popular due to low entry investment... Some cryptocurrency companies are giving cryptocurrency loans to third-world countries.
For a Proof-of-Stake coin to be usable in third-word countries, it requires staking pools, as most users don't have enough coins in the start to be able to stake alone.
It's not just Proof-of-Stake coins that are good for third-word countries, but also CPU minable Proof-of-Work coins as those can't be easily exploited with GPUs, FPGAs or ASIC miners due to design decisions. Basically you get less hashrate with more expensive hardware as the algorithm is not memory intensive like for example Ethereum.
It's common knowledge that OpenCL miners can only utilize two threads per GPU, and that means for some coins they can use only 512 MB of the GPU memory. Most common display adapters nowadays have at least 4 GB of display memory to allow 4K resolutions.
CUDA cards can utilize more threads than OpenCL but are still limited by memory bandwidth and operating system. For 4 GB card, up to 3.6 GB can be used for mining.
If a coin is minable from a phone or a basic Computer, this can increase adoption in developping countries. Some coins have an edge over others in this respect. Doge is a niche coin because of the very low transaction fees.
Thanks a lot for your quality comment!
As a cryptocurrency developer myself, one of the main guidelines for selecting algorithms was that the algorithm should be optimized for low-end CPUs... My coin can be mined with powerful Xeon CPUs with 32 or 64 cores, but it doesn't give more coins than solo mining on low-end CPU. Basically more powerful CPUs waste time finding even better solutions when less powerful ones only need to find one solution per block.
Having lower average block difficulty doesn't mean that already mined blocks are easier to replace in blockchain as rewriting blocks still need enough transactions or otherwise other nodes will just reject the smaller blocks.