Thanks for that Chris, good story and yeh, doesn't seem that long ago. I was in my early 20s, driving around in my Mum's Mazda in Melbourne, listening to 3RRR, the local alternative radio station. I can remember exactly where I was when I first heard "Smells Like Teen Spirit", stopped at the lights at the corner of Lonsdale and Exhibition St. Not being a commercial station the DJ could just go, "Oh hell, I'm just going to play Smells like Teen Spirit again."
There is, however, one piece of trivia that was instrumental in the album (and grunge's) success. Record stores were changing over to digital point-of-sale. Why did this matter? Because the charts were starting to reflect actual sales, not the artificially inflated (mainstream) and artificially deflated (alternative) figures that the record stores would profer. Anything below the number 10 position was heavily manipulated which wasn't hard when the numbers were typically much smaller compared to the number one. They would literally ring up the record stores to get a "tally" of sales. If below 10 was manipulated, by the time they got below 30 they were usually making shit up. ...and if the shit you were making up wasn't the dross Artie Fufkin was bringing in, he was going to be mighty upset. Why? Because anything that made it into the top 40 would get played on commercial radio.