Private property, so I guess they can do what they want.
But good on them, because Yield signs make so much more sense than Stop signs.
More municipalities - including Scarborough - should have more of them.
In fact, virtually every 'controlled' intersection should have a Yield, instead of a Stop.
Ever since the advent of synchromesh first gears on manual transmissions (and of course automatics), the vast majority of drivers treat Stop signs like Yield signs anyway.
And in the vast majority of cases, that's all that's necessary. You can almost always see if any traffic, pedestrians or cyclists are coming while rolling through at a couple of klicks per hour - there's just no need to come to a full and complete stop.
That only puts extra wear and tear on your brakes, and of course wastes fuel because it requires more fuel to launch a 2,000 kg weight from a dead stop than to just accelerate it.
Creates more pollution too.
With all due deference to the beauteous Julie Bowen in her Emmy-winning role as Clare Dunphy on the brilliant TV show Modern Family (a recent plot point had her trying to get a Stop sign erected at an intersection near their house), the only purpose of a Stop sign appears to be to give police a chance to run up some tickets.
If someone runs a Yield and fails to give right of way where it was required, the cops can still easily ticket that.
But nailing someone for going 5 kph instead of 0 kph for a nanosecond?
Except for the points on your licence.
Most jurisdictions around the world utilize more Yield signs than we do. What makes them so special?
They're just smarter, is all.
Of course, all those 'controlled' intersections should be roundabouts - again, like many jurisdictions around the world.
One step at a time...