Message Spacing

Also what is odd is "hf101" has 2 letters and 3 numbers and is to the right of the avatar and "ruxpin" has 5 letters and is below the avatar.

this isn't so much a bug as a styling choice.

the message row is 3 columns, the username is a fixed width, the message is dynamic width and the message time is is a fixed width.

you can in your custom.css, you can add:

.cBabbleRow .cBabbleUserMain { 
    width: 100px;
}

you can adjust the width rule till its corrected for long names and avatars.

thank you,  150px fixed it.  I also changed the font size to 12.

version 2 (what babble is currently on) was designed with the IPS chat in mind, i wasn't too sure what attracted people to it or to shoutbox (3.x), but they both had very similar designs, so why screw with a lineage? 

version 3 however draws inspiration from slack and skype, both i use a lot and have come to be my "gold" standard when it comes to expectation of what a new chat should have. so the message row is getting a complete revamp for version 3

Nice, made the change on mine, and now have 9 lines of chat at a time before scrolling. 165px user width and no avatars.