Report it!
Dear Ali and al,
I would be grateful if ATC would report these non-compliances to the company, regulatory agencies. That way, corrective measures can be taken.
Please, report it. No kidding.
As for desced and reduce, I understand that in major hubs, aircraft performance is sacrificed in detriment of traffic flow. Sometimes you have to open speedbrakes to get the cleared speed and altitude, and later you may find yourself high on profile. I have no problem with that, I don't ask why and I will not ask for further descend.
Quoting Doc 4444 PANS-ATM- 4.6.3.4:
"Instructions for an aircraft to simultaneously maintain a high rate of descend and reduce its speed should be avoided as such manoeuvres are normally not compatible."
Cheers.