This is spot on hands down, I too developed in flash in the zero years and it was complex enough, great animation, better than Javascript, and you could do communicate with the browsers, connect to a rest server. I worked on a small team and built the e-learning CD for the Biology Audesirk book by Prentice Hall. If you have every played Behemoth's games like Castle Crashers or Alien Hominid the graphics were made in Flash (in fact Alien Hominid started as a game from their portal newgrounds.com, written in flash). I think it really helped a lot of graphics designers and developers created many cool things. And I do think Flutter + Dart are the new Flash replacement or the closest to it.

First of all... if you are not a developer you should NOT even be commenting here (this is for anyone writting comments without an idea).

Topcoder is a competition, which is split into algorithm, software design and software components:

1. Algorithms are just to compete, shows off applied math problem solving on shorts period of time (prestigious).
   
2. Software Design - mainly for components, pays the most and you get %25 royalty!
   
3. Software Component - implementation of the design, pays a bit low but you do get again 25% royalty.
   

Note that these are all very competitive, and help improve software development skills fast. Try a competition they use OO languages. There are people that get 20k+ doing this things, I am not saying this will replace your job but give you extra money on the side. TC is more prestige than anything else and prorgammers do get compensated.

Now crowdsourcing is just going to work as well or worst than outsourcing to India. I don't know any company that has been satisfied by outsourcing to India.