Incenjucar
Legend
Don't be obtuse.
A player can just as easily look at a monster manual or DMG or published adventure and do the same thing.
And, easily solved by having an index of the new stuff at the end for the players to view. Lots of RPGs have DM's section and player's section.
Yes, but that is the player actively seeking to purchase DM-specific material.
There is a huge difference between the two.