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If you're happy with it, there's nothing wrong.

There is no such thing as free lunch
I am drained

Yeah. I know what you mean.

Now, I am thinking of stopping at some point

Think wisely.

Yes. Only little bit of side maintenance.
I'm hardly getting 1-2$ a day as a reward on post.
And witness reward per month is as lower than the cost of running witness node.
I ain't getting enough support, enough users, enough acknowledgement or appreciation or motivation to keep going.

Just don't give up.