I think this is revisionist. Look up AI articles from 10-15 years ago and the idea of conversing / generative AI will have been poo-pooed here on Slashdot.
OK. So we'll just ignore the fact that the time frame up for discussion was 5 years ago, but somehow I'm the one being "revisionist" when you move it to 10-15 years ago? OK, let's go back three times longer.
15 years ago, we already had things like Siri and Watson. Various kinds of computer generated art had been around for decades and "filters" and other "intelligent" tools were all over the place in all kinds of graphics software, editing video live, etc. Sure, turning your face into Shrek, or an anime character, or aging or de-aging it live was still a couple of years away at that point, but the writing on the wall was clear from what was available that such things were right around the corner. So, yeah, I am very confident saying that the Slashdot crowd would not have been poo-pooing things that largely already existed at that time and were clearly being improved on constantly.
I will add the caveat that I suppose I am being a bit of a snob when I talk about the Slashdot crowd. I mean the actual, real, tech types here. I am excluding the ones who were posting serialized porn, ASCII nudes, thousand page posts of nothing but swastikas, etc. Or just people I consider not really worth considering. Sturgeon's Law applies here.
As for the product being terrible. I call it that because it is. Once it stops constantly giving me answers that make very basic errors, giving replies that contradict themselves, telling me at the start that "no, X is not the case", then giving all the facts that show that X is the case, etc. then maybe I won't find it to be so terrible. As it is, we keep seeing, over and over and over again articles about lawyers getting in trouble for submitting briefs citing cases that don't exist. How hard is it to not cite something that doesn't exist? Sure, it's improving. The fact that it may be good in the future does not make it good now, however.