i thought you must be new to the site since u didnt kno wut they are...but i see you have at least 60 posts... those green dots are sort of reputation "points" other members can give you "positive" + rep points or "negative" - rep points they give you +rep if you do somethin they like or -neg rep if you do somethin they dont like yours is red becuz someone gave u negative rep if you wanna see why you got negative rep click "User CP" and it shood be rite at the bottom of the right column if you wanna find out more type in REP or REPUTATION in the search bar
http://forum.grasscity.com/general-feedback/104389-reputation-guideline-how.html ^^^here dude click that and that thread should explain everything nd you got rid of your red dot!!!! so you obviously did somethin rite