unless you know how to make a video game with millions of people playing it you have no idea how hard it is! i bought this program to make mods, and it took me over a year to successfully make one item! so stop critizing them unless you made a video game like gta or something
Just an aside for those who are curious how you makes games in HTML. Here's a link to the official docs for your reference. Note: "Flash" is being retired in 2020 because everything it can do, HTML can do better (and doesn't require a separate download/install). So yes, all those sites with Flash games--including Facebook--will all eventually switch to HTML.