Your question isn't really accurate. You asked if any Orcs are mentioned by name in the LotR movies. It is entirely possible to answer this question without having to read every word of 5 scripts. I briefly explained this in the comments, but I will repeat the explanation here:
The other characters- the humans, hobbits, dwarves, elves, ents, and wizards - have no way of knowing the names of any Orcs. This makes all the lines spoken by such characters irrelevant. The only characters who might refer to Orcs by name are other Orcs. Therefore, the only parts of the scripts that might contain the necessary information are the scenes in which Orcs are speaking to each other.
There are very few scenes like this. In fact, there are very few scenes in which Orcs speak at all. I have seen each of the three movies at least a dozen times. Off the top of my head, I can only think of about three scenes in which Orcs speak to one another. Even in those scenes, the dialogue is mostly limited to things like "Get a move on, maggots!", and "The scum tried to knife me!", and "Looks like meat's back on the menu, boys!" You'll notice that in none of these cases do we hear any names being mentioned, unless someone is named "Maggot" or "The Scum" or "Boys".
Thus, by simple deduction, we have already eliminated all but a few pages of the 5 scripts. Your argument now boils down to "I don't believe that anyone could read 5 pages in 3 hours", which doesn't make sense.
Having also read the books, I can remember only a few Orc names: Shagrat, Gorbag, Ugluk, and Grisnakh. There are probably a couple of names I'm forgetting, but not many. The Orcs in Tolkien's work are foils, nameless baddies who serve little purpose aside from giving the good guys someone to kill. There are hundreds of thousands of Orcs, and all of them are exactly the same. Why bother trying to distinguish between them all? There is only one Balrog in the movies, and we don't know its name either.
The problem with your comments was that you disrespected a fellow user for no apparent reason, and you questioned that user's ability to do something that isn't even difficult to do- read a handful of pages of a few scripts. It isn't about misuse of authority, bullying, throwing weight around, or whatever else you want to call it. It is about simple common courtesy. You basically called someone a liar. Unless you don't mind being called a liar, I think you will agree that "You're lying" is a pretty offensive thing to say. Were those your exact words? No, but the intent is the same. "I don't believe you" is synonymous with "You're a liar".