When reading comments I have to be very careful not to click outside the column because it gets closed and position lost.
That's also my experience - I have to be very careful not to click on anything, lest I lose my position on the thread. I don't understand how the developers themselves don't get frustrated about this, frankly.
Not heavily, no, and definitely not on Android (at least), where they have some algorithm to reflow the timeline both at random times, and after viewing a specific tweet. Click the back button to continue reading your timeline and they insert 5-20 tweets in between the one you just read and the one you were about to read, or they pop you up to the top of your timeline.
It's truly a bizarre UX, and the only charitable way I can interpret it is that they're using Continuous Delivery, implementing features in a piecemeal fashion, using users as alpha testers, and basically moving slow and breaking things.
That's actually one of my concerns. As a heavy Twitter user for like 8 years (I spend at least one hour a day in that app) it is obvious to me that those involved with Twitter do not use the product at all.
I never know what is going to happen when I click somewhere. The only thing I know is that it is not going to be what I expect. So I dare not click anywhere...
That's also my experience - I have to be very careful not to click on anything, lest I lose my position on the thread. I don't understand how the developers themselves don't get frustrated about this, frankly.