At the restaurant I worked for and eventually managed there was an unofficial tip the hostesses/host stand policy... Keeping your host stand happy means they're more efficient and get you more tables. That also applies when you're going out, dropping a $5 can get you seated A LOT faster if it's really busy.
I have no problem with wanting the wait staff to be paid appropriately, I just think the tipping culture is fundamentally flawed especially when service charges are added in.
Meal Cost+Tax+10% service fee+10-20% server tip= True meal cost.
Meal cost=True meal cost should be the standard.
Tipping does not guarantee better service especially when it's not a voluntary tip.