People don't have to be held accountable to their opinions anymore due to being rewarded by temporary fame of the algorithm, who serves no moral power. You can get your hot take off, even if you don't fully believe it, or haven't extrapolated the consequences of your conclusions, and reap the benefit of attention without having to be held accountable because the next tweet is on the way.

Also the pressure disincentivizes deep thinking, the time and effort it take to actually form an opinion worth sharing.