Well by all means continue doing so
You will notice however that your coin amount is not going up 11k every 300 sparks minted, you will also notice that even tho in the minter screen it says durability is at like 20% or thereabouts when backing out of it and repairing you can see the minter is barely damaged…
Funnily enough it does. I even kept an eye on coin total. However, after about 5 seconds it reverts back. I even set a sale stand up next to my minter and you can spend the coin too
. This too fixes itself after about 10-15s
Edif: clearly it is just client side that shows increase and then corrects, but when I looked at it to start didnt really pay attention to that bit, as with 1 bit of spark the effect was immediate with 10 it wasnt.
Still a happy player though, someone bought over 800k in coins worth of coal from me
Haha nice
Might have been me actually, lol, overnight perhaps? I bought some coal when I got out of bed in middle of the night when I read about this little bug and made a bunch of compact coal. Got most of it still in spark gens before they patched it.
Didn’t do much and made 2.5m, good thing I checked my phone after I went out of bed to go to bathroom 
I think some people just get a little upset at times.