Founded in 2016 in China with Haipo Yang as the CEO viaBtc is a multicurrency and multi chain mining pool. It has so many users and is available to users from over 130 countries.
The minimum payout threshold for all coins is 0.0001, this make it easier to reach. Regarding the transaction fee payment system viaBtc is using PPLNS and PPS system even it support solo mining.
It provides adequate information that will help any users who want to set up the account. It provides certain security measures and the pool is stable. Though sometimes in the past there are complaints from certain users who are not satisfied but that has been regulated.
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In conclusion if you want a mining pool that is very simple to use, and has support for many coins you can think of viabtc.