I personally don’t care for people who make internet posts anonymously or hide behind an avatar. At the very least, it undermines their credibility. Whatever you say or believe, you should be able to stand up for it - As You Are; yelling it from the shadows is cowardly, wormy, spineless.
Many folks who use this tactic are internet trolls whose primary reason for being anonymous is to maliciously disrupt conversations using personal attacks or to take the conversation off topic. It’s more than annoying; it’s destructive, cowardly, childish and often cruel.
This despicable behavior, in my opinion, is the product of a society where perpetual adolescence is held in high esteem.
Nevertheless, it’s repugnant to make it illegal.