too powerful for survival, needs priv

[retsil2]

i love this mod, but it's a bit too powerful for survival ruleset, because it allows to dig all blocks, even very hard ones, which would usually require nice iron+ tools. would you like a patch with priv? we can cobble it together real quick.

[GreenDirkfried]

I am with you here.
But I think, while the replacer is very useful to place for example stairs, the most problematic thing is the replacement on left klick.
I suggest a replacer.conf with REPLACEMENT_NEED_CREATIVE = true.
And code, which, when the above is enabled, checks if the player has creative before replacing a block.