More importantly, you're wrong. Lots of people (myself included) use and love Dropbox, and find it valuable.
You're not actually saying anything specific in your comment, just "it's not valuable". Do you want to offer actual criticism?
Also 2007 HN looks like a very different kind of environment. Everyone's so polite! Comments happen over several days! It's more like a feedback on a design doc than a Twitter thread.
There were some subtle shifts, as front page posts started being more for people who think startups are cool, and less for people who want to figure out how to make their startup win. Then there was a big shift, as diggers fled to reddit, and redditors came to HN.
Now, HN is comparatively useless.
OneDrive actually does the same pretty well too, and integrates with their native Office Suite. There is really not a good reason to select Dropbox at this point, unless you are just working PR for them.