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Thank you @strugglingdiy, something I have just learned is .. be careful of what you upvote - cannot should not upvote too much. Is it true?
I could not upvote your welcome, not sure why

You dont want to go over 20% steempower in upvotes a day. You want to keep 80% or more steempower at all times.

Thank you for replying, sorry for getting back so late.. So, how do you know how many upvotes your 20% is? And what do you do (if anything) with the rest 20%?
I feel that upvoting is a kind of appreciation, and I want to upvote every reply, but after a few times, the system will not allow me to.