I am sure you are exactly correct. Phrases and even particular words become trendy and then seem to become trite and over-used. I remember when the word ubiquitous, consistent with its own meaning seemed to be everywhere. Then seemed tiresome. And not seems rarely heard.Lol. I kind of noticed over the years here in the US and probably the same worldwide we get into saying certain things. I think a lot of it starts through the Press, movies and media.
I do notice these Trends change as years ago and new sayings develop to become popular, or maybe cool.
My bad... bad what? Sentence or what. lol
I think I wrote about "my bad" in this thread earlier. I like the phrase and find it useful. My wife thinks I should never use it, especially in any work-type setting. I guess she sees it as kind of a combination of trying to be too "hip" and declasse for office use. Some object to it because it can often be a weakly stated apology that is not really an apology at all. I suppose it depends on the intonation. Or an apology that sort of says, at the same time, I admit fault but it still does not seem like a very big deal to me. I suppose it seems useful to me often enough to have a way to admit some level of fault that does no sound as solemn and weighty as making a full-on apology. Sort of an I screwed up, but it was unintentional or something. Maybe I just screw up more than other people! But that is is just me. My wife is usually more sensitive to decorum than I am, so she is probably correct that one should not use the phrase.
And, AimlessWanderer, you seem just fine to me!!!