This is a super minor bug so please consider it way down your list!
The alt-text for every badge gives the number of finds needed to reach the next level EXCEPT the lab cache badge which gives the absolute number for the next level
For example, if you had found 50 caches and the number required for the next level was 100
For the LAB cache badge it will say "User has 50 and needs 100 to go up a level"
For all other badges it says ""User has 50 and needs 50 more to go up a level"