I'm using this plugin for my very first wordpress site. Now It works very well but, on internet I am willing to pay for things that work, and I'm always very concerned about free stuff regarding future updates, and support.
Of course, the developer is free to do what he wants but, the method of donations does not convince me. 188,270 downloaded this plugin and in my opinion is time to pay for something that works
If you can pay for example 30€ per year for my professional antivirus, why you shouldn't pay for a plugin that save your time and does the job.
Maybe, is better to know the amount you need to keep this plugin alive.
Thanks you anyway.