The product itself still exists as Adobe Animate, I think (or one of the Adobe CC tools). It's just as good or better than it ever was, with the same workflow. But instead of exporting to SWF now people just export to video and share it on video platforms. Lots of great stuff still being done with it on Youtube.

But flash was interactive, videos are not. I miss the days kongregate had a bunch of new fun games regularly.

I suppose itch.io fills that niche now.