These sites pays, and these shortlinks can be done. You should know how to do the trick.
I have a lot of experience in doing shortlinks and coin curious can proof that I'm doing all of shortlinks in FreeBCC almost everyday.
If a shortlink can be done, I can do it.
For those I will just let the answer here: You need to zoom-out the browser to 25% (Hold CTRL and use the wheel of the mouse) and click the captcha in that way. To complete the recaptcha you may want to make the zoom 100% again, and then to "click to continue" make the 25% zoom-out again. The same for the "Get Link" page.
In that way you just avoid the annoying banner in the front of the buttons.
Another way is, almost all of these banners have a "X" (orange in most cases). This is viewed when you zoom-out a little the page with the same technique before. Be careful because a few banners don't have the X and you can't close it. The best method is first method.
Hope this helps! This is a very good information and I'm giving you for free