I think it's a problem of management not knowing what to do with developers once you have a solid stable product. Without proper direction people just keep add

I think it's a problem of management not knowing what to do with developers once you have a solid stable product. Without proper direction people just keep adding features that are only used by a tiny subset of the userbase, and you end up with a bloated application that's slow to use because it's full of functionality that nobody uses. And of course, you still need to pay those developers, so you shift the burden onto your userbase through ads or fees, making your application less appealing. WinZip was a good example of this.