Nothing much, marwel7, since some of us still have badges we don't earn (I haven't been here 10 years but I still have a 10-year badge!). Bit of fun, that's all.
If you click on the tab that says Badges it will list what your 5 badges are for. Some of them will be wrong as we all seem to get some badges (eg 10 years' membership) whether we meet the criteria or not