Who are you following on Twitter that it’s gone quiet for you? Mine is as conversation-filled as ever, and rarely abusive. There may be pockets as you describe, but I think saying “Twitter is dying” is highly overstating it. You make good points about the culture, but it points more to the human condition and its being enabled by many technologies. I listen and RT far more than I tweet myself, but I rarely see people abusing it. As with others who complain that Twitter is shallow, I think it depends on who you follow.