I'm not sure but I totally fell into it I guess if it's not true, just have heard a lot of people say that. I admittedly don't know what I'm doing, all I have to go off of is that my score has been rising fast the last few months so I figured it was true. Then also credit karma I got an alert from them today saying that if I paid $126 of my $400 balance it would give me a credit boost, so I just paid that and it'll come out of my checking tomorrow.