Just because you have "coach" in your name does not mean you are right.
And if you cant ping AT ALL when your laner leaves..... you shouldnt bother trying to give advice if you are oblivious to the simplist of things one learns to do in League.
EvilDustMan1 votesOddly specific.
Silly Neeko1 votesWould it help if i said ward around as well? Instead of going "we need vision" support is out of sight stone cause they have been warding a lot..... like really. Its free. Plant one down, grab a sightstone and spam it in base... something. At least give the APPEARANCE that you are even trying to help the support ward.
Mizuki Zahra1 votesi stopped pinging cause i pinged "?" when enemy jungler left lane and after that my adc 
tumbled into the "?" ping. she must have accidentally used tumble thought that i was harassing her so she flipped on me and afked then the rest of the team went off on me and i muted them all. this happened enough times that i guess pings are a joke i mean even riot made a skin bundle called ?????????? so whats the point, use the map its there
Silly Neeko1 votesThey were trolling you then. I have almost never had that issue. You should try to always ping when an enemy leaves lane or goes out of sight for more than 5-10 sec.
I can understand not doing it ALLL the time.... and yes, watching the map is all fine and dandy.... but at least try every now and then.
Mizuki Zahra1 voteswhen i play soraka i watch hp, and map all together and i used to ping for every lane but now thats considered harassment wtf. like the in game community is a sespool of 420 drunkies that dont care.
if only there was a casual mode in league