Please note that I’m not questioning your above decision as its clearly everyones choice how they wish to approach such things, so this is not directed at you.
But in context, most people are not tracking down and sending tips/payment when they freely gather information from Google, Forums, StackOverflow, Codepen, Github, Tutorial sites, Youtube, Frameworks, Libraries, etc. Instead they choose to pass things off as their own solutions, works and use those things commercially while never giving credit as to where it originated. In similar regard people that use Blocs are not sending Bootstrap, Jquery, etc., separate support funding since those are used in the app and both of those take massive dev effort. I’m sure Norm wouldn’t mind if with every .Xxx update users would send funding between paid major updates for all his hard work. :—P
Again I am not questioning you or anyones approach or decisions. Just giving context in the broader perspective of how historically the web has inherently worked and allowed individuals to prosper. Allowing people to create opportunities through other peoples hard work is what has allowed the web to thrive. If there is a singular positive of the web besides connectivity and all it has to offer it would probably be that aspect. As it has allowed the web to mature to the point that it is today and offered multitudes the ability to prosper freely from others. For instance, people can create a free Youtube account and end up a millionaire. Many times developers will use generosity as a way to give back but also create income. There are lots of frameworks and libraries that have both open source and paid versions for these reasons. @Eldar has done a great job with this approach of offering both and it has allowed him much success.
Generosity can come in many forms - I saw this just recently and it made me laugh.
The web is full of generosity that allows opportunity for anyone to prosper.
@Visionquest, I believe so.
I posted this old screenshot in another thread the other day that seems to indicate some form of captcha or spam protection is coming to Blocs v4. But I guess there is always the chance that could of changed since.