Many of us do in fact. There aren't just Americans on here, and tbh, calling them 'Greek Tortoises' is a very misleading name, so I see no problem with calling them Spur-Thighs, as it is a more accurate description anyway. I think they were referring to a 'Greek' tortoise, I can't see why you think they were referring to a different species. I don't agree, for as I said, different names are perfectly acceptable, and a 'Spur Thigh' name is more accurate, even if the Latin name calls it 'Greek'. Yes Sulcatas are sometimes called African Spur-Thighed Tortoises, but that is quite an unusual name. Perhaps a thread with common name synonyms would be a good idea. I can think of at least one other tortoise like the Greeks, where American English calls them Russians, when in fact they don't come from Russia at all. Here we call them Horsfield's Tortoise generally.
I do know that Americans aren't the only ones on this forum. I think the conversation has steered off course. This isn't an insult to my numerous foreign friends or about language. If you feel the need to start a thread on common usage of English words being incorrectly appied to various species of tortoises, go right ahead. I, for one, will welcome it. But, for the purpose of this thread, it was obvious the OP didn't know what kind of tortoise she had. I'm glad I questioned the species she had so that she can research and give the best care to her greek baby.