Different colored names are gained by earning certain badges available on the site. Badges can be earned in a variety of ways, but only some of them will allow you to change your name color. For example, my particular name color indicates that I'm a Ladder Referee (the badge also shows up beneath my avatar). Secondly, there are no "rankings" of color per-say, but people with glowing names generally have higher achievements than those with just a different color. Glowing names are used to identify Super Moderators as well as Administrators. Users who have placed high in national tournaments also get glowing names.

Input lag is just one of the many downsides of playing on wifi. If you have a slow internet connection, or if the person you are trying to play lives relatively far (like across the country) than lag is to be expected. There really is no way to fix this issue. The best thing you can do is try and play only those within your region.

The first question, though, was not referring to the forum users name color, but in the brawl chat color. For instance there are many green and blue people, and a very few number of silver and even less pink members. Wasn't sure what the colors of their names meant.