I tried The pirated version
Admitting that you pirated the game is not really a good way to introduce yourself to this community. The flight sim market is small, the community is small, and profit margins for the studios are even smaller. I'm glad you bought the game, but please understand that piracy hurts our hobby much more than it hurts a huge company like EA.
With that said, welcome!
Is the game now fixed or something ?
I have no idea what version you pirated so I have no way of answering if the game is better than your pirated copy. Many past bugs have been sorted out with the latest beta patch but some bugs still remain.
Depends what you mean by moddable.