We've been instructed to climb flaps out in ORD since the departure has a speed restriction not just the FAR limit. Obviously ATC can waive SID speeds.We only give them 250 in Germany. ORD is normal speed.
We don't need ATC relief in your example. It's provided for in the FARs.At my facility we’ve been briefed specifically that we do not have the authority to waive 250kts under 10k.
I work the majority of the Super/Heavy departures off LAX, and if a guy tells me he needs 260 out of 6000, I’m not gonna unable him. Like someone else said, we aren’t the sky police and 99.9999% of controllers don’t care about stuff like that. It’s the higher ups in the FAA that haven’t worked live traffic in 25 years that find rules and procedures to nitpick to make the operation harder on everybody actually doing it which sucks.