Worst and Most Distracting Times to Use Pings
You are already clearly attacking champion X -Your teammate pings target champion X multiple times
You are locked down with multiple cc low life and your team is running away -Your team spam pings you with fall back 5+ times
You are about to finish off champion X, they have no chance of killing you because of no mana or cooldowns -Your team spam pings 'fallback' all over champion X saying something like 'don't chase' when you clearly had the kill anyways
Enemy Jungler is ganking bot and has already shown himself -Your teammate pings 'enemy missing' and 'fall back' all over botlane way after the Jungler has already emerged
You and your lane partner are going 8/0 -He feels the need to still ping fallback on your face every 30 seconds if you are below 75% health.
Your lane is getting pushed 2v4 bot -Top/Mid is spamming assistance pings to their own turrets
Your teammate is about to die after solo diving way too far -He pings assistance all over your champion after he is already dead and then blames you for death
Just had a player abusing pings like this (IN A BOT GAME), I asked him to relax a bit and to only ping once not 5 times for each event.
Remember use pings to HELP your team, not abuse them.