Ask HN: Why does Twitter for Android and other Android apps suck so much?

Right after installing it, it is fine. But after a month or two, avatars are constantly disappearing, caching is awful, etc. It's obvious they won't solve it - 3.0.0 was launched a long time ago, we're already in 3.6.0 and they have done nothing about it! Just adding new features, but it's always buggy.

Why don't they do anything about it? And it's not something particular to Twitter, Facebook and some other companies do the same for their Android apps. They don't care about Android users? Not a wise decision, taking into account that Android has already taken over iOS market share... yet they don't seem to care.