2key.io is about campaign and sharing links. It is also a way to donate to some charity projects. If I remember correctly, donation was a first or maybe primary reason of this site when I first heard of it.
The site has an integrated wallet with several crypto currencies and its own token - 2KEY: https://www.coingecko.com/en/coins/2key
The campaign link looks like this:
https://2key.me/2KeyBlogLaunching2KeyReputationMiningV1/moto/ISmlM
If you click on it, you will be able to read a campaign message and I earn some 2key for the fact that someone opened a link.
This link details 2key.io new reputation earning and staking options. These are a bit complex for me but as long as they generate tokens and cost nothing to me or others - why not to try it.
As everything with Ethereum, gas fees are limiting transactions and even donations will be partly to miners, so I think every project on Ethereum is currently suffering. But may be in several months I can at least donate these tokens. Right now I have earned 10 and have not done anything with them as these might not worth a gas on Ethereum :-)
https://2key.me/2KeyBlogLaunching2KeyReputationMiningV1/moto/ISmlM
The referral link above us a campaign link. Site address without referral, if you with yo test it, is this : https://2key.io
There is only one post on read.cash with 2key.io link. You may check it out as well:
https://read.cash/@ElBalkumbero/deva-from-supernatural-deity-to-a-town-name-in-romania-f4eb78f1
Thanks for sharing!