Ohai! That's a very nice update you have there...
I've long been a Skitch user, it was perfect for what I needed. With basic annotation support and the ability to quickly upload it and copy a link, I couldn't have asked for more. If I saw something while trawling the Interwebs and wanted to share it with everyone, I could have it tweeted in a couple clicks right from inside Skitch. Awesome! And all this triggered by simply pressing ⇧⌘5... I couldn't have asked for more.
Sure, there was the occasional issue, but their support was always quick to respond. The one time I found a bug they had it fixed the next day, and that was only a minor issue (when tweeting, the charcount was out by 1, causing it to break if you hit the limit). The rest of the time though it was my fault for forgetting to update it in the Mac App Store (which, coincidentally, I never EVER check). But Skitch services have moved to Evernote and it's not as sweet a fruit as it used to be.
So you've just opened Skitch for the first time since updating (because the old app won't upload any more) and you're immediately offered a helping hand. This is great! I can import all my old screenshots right now, and in a few moments everything will be just how it was before...
Are you sure you wanna do that?
Wait, what?! So I'm already over my quota before I've uploaded a single screenshot? This sucks! Where the heck did this quota come from, anyways? Being the daring soul I am, I went ahead and clicked Import anyway. What ya gonna do about it? After waiting half an hour for it to process my screenshots, I discovered Evernote already had an answer prepped for that question... Crash.
So, I relaunch Skitch and it turns out it successfully saved about 250-odd screenshots. Since importing "replaces the Skitch History in previous versions" I thought it would delete the files as it went. Oooooh how wrong I was. Now I can't finish importing screenshots from the old version unless I manually clear out the 250+ images that it imported before crashing. Alternatively I could hand-pick screenshots to import, one by one. Yeah, screw that for a game of soldiers. I can't just pick up where it left off ("Hey Joe, don't bother with resumable imports, our app can't possibly crash!") and it didn't appear to import in any particular order either.
OK sod it, I can live without screenshots I took a year ago. Let's just take this shot for my client, get it uploaded, and worry about importing everything else later.
All your bytes are belong to us!
Except I actually can't use it at all because to upload a screenshot it needs to finish the current sync, of which there is no way to pause.
Oh and there's the minor issue that the previous import not only killed Skitch, but also ate the entire 60MB allocation that's supposed to last over two weeks before getting reset.
Even if it DID work, the interface is far less delightful, the icons are HUGE (even on my 2560x1440 display, so I dread to think how it'd look on anything less), and the URLs it generates are longer than the road I live on. This is a massive step backwards. What happened to the skit.ch links? It's possible that they're still generated if you choose to share to a social network, but they don't work (apparently "Auth is a required field"). If that's the case, it's still wrong that you're forced to go into the browser to grab a shorter link for things like IRC and Skype.
TinkerTool to the rescue!
Ever since Apple felt the need to make all the UI fonts huge I've been using TinkerTool to shrink them down to something I find more readable. I also told it to redirect screenshots to a directory inside ~/Pictures long before I ever became reliant on Skitch as part of my daily workflow. I've changed that to point to my Dropbox, and from there I can grab the public link and do what I want with it.
It's not ideal, but it works for sharing screenshots until I find something built-for-purpose. TinkerTool does a TON of other stuff though, so if you don't like Apple dictating how you have your Mac, I highly recommend it. At the very least, take a look at the list of over 100 OS X preferences you can tweak; I promise you won't regret it. What about annotating screenshots? Believe it or not it's built in to Preview.app, so I can use that instead. I keep forgetting it's not just a PDF viewer...