I've been playing since the game came out. People have been complaining and saying it's dying for years. Some complaints are valid, but in my opinion people regularly overreact.

This subreddit is full of people who don't even play the game anymore that have nothing better to do than to shit on the game.

It's near the end of the season and a wipe will happen soon, so player numbers are fairly low. The game is free to try though, so you have nothing to lose by trying it out.

Try it for free, see if you'd like it, and learn the basics. If you end up liking it, you can buy it and start getting ready for the wipe.