18 Months In, Few People Use, Mine or Buy Privacy Coin Grin
https://www.coindesk.com/18-months-few-people-use-mine-buy-privacy-coin-cryptocurrency-grin
I think that there were some people in this forum who were promoting grin or maybe it was mimblewimble or beam.... I am not sure about what the difference is between those three and they seem to be related somehow...
Does not seem to be a good thing to be promoting those other projects.
Copper - 0.00261905 BTC: Allows you to post images even if you are a newbie, reduces the time-between-actions limit, and provides some of the same benefits as being of natural Member rank.
Pay to the Bitcoin address 384oazPjyXB3i2xmY5zyHyuGfdGCPsVL49. Once your transaction has 1 confirmation, revisit this page and then use the form which will appear in order to wear your new membership. Your transaction will not be accepted until it has 1 confirmation. Bitcoin network fees and exchange/wallet withdrawal fees will not count toward your payment.
We are commonly asked how we know that you sent a payment. The address above was newly generated just for you, so when any BTC is sent to it, we will know to credit it to your account. It is all automatic.
You can also pay via grin.
As far as I know, Grin and Beam are two of the first coins using mimblewimble. It's a cool protocol which focuses on privacy and scalability. Litecoin is expected to adapt mimblewimble on September. Aside from being an altcoin, I don't find any reason to be against Grin or mimblewimble in particular.