The text differentiates people (e.g. if multiple anonymous people were replying to each other). Otherwise it would be hard to follow the conversation. It could be shortened though.
How about something like gfycat where you have a list of adjectives and animal names/nouns & you use the 1st & 2nd 1/3 bits to modulo index the adjectives, then the last 3rd for noun.
Then people would be automatically assigned a name like "Voracious Sedentary Aardvark". Maybe it could warn when they set up acct that that is their name until they change it.
