Yes, there has been a single change that has improved things. Changing stars to hearts. The data shows that it's an improvement, presumably to engagement (as st

Yes, there has been a single change that has improved things. Changing stars to hearts. The data shows that it's an improvement, presumably to engagement (as stated in the Twitter blog post). Now, whether you consider that an improvement, is just your irrelevant (irrelevant to Twitter) opinion. I think we really need to draw a distinction between opinions that are thrown around and decisions that are backed up by data, and give benefit of the doubt.