Ovinomancer
No flips for you!
Yup. If high optimization is important to your table, you should let prospective new players be aware of what kind of play your table expects. This isn't a bad thing, it should be obvious!I've never caught any flak myself for it, but a good friend moved to a new city and the first gaming group he tried to join gave him flak about this. He's not a min-max kinda guy, and they thought that was dumb and treated him dismissively for not optimizing. Put that in your "Looking For Players" ad, guys: "Min-Maxers Only" or somesuch.
My table's general expectation is "don't be stupid intentionally." That doesn't requite putting a 16 in your prime stat, but it generally does require not putting a 12 there without good compensation. Which is hard to find in 5e, honestly. 3e allowed for more off-axis building than 5e does, and 4e just made sure you couldn't suck. 1e and 2e just largely devalued build (until skills and powers at least).