Hi there,
There's pool A mining an altcoin, and finding %95 of blocks with high hashrate and many miners.
But there are other pools (B,C,D) also, mining same coin, but they only find %5 of the blocks.
So what's the purpose of joining other pools B,C,D? That means low-profit.
normally, pool B, C and D should be as profitable as pool A, on the long run
That is also a good point. If you stick around with the smaller pools, you will make about the same. Hashing is like guessing. You need luck