[cheat-master30]

He's basing if off the number of installs for mods for different versions. In other words, any of these could also account for the figures:

1. Your latest version of the mod is slightly worse than the last one.
2. Less people are using 3.8 because it's in beta.
3. Less people are using 3.7
4. People aren't modifying their forums as much as most features are built in.
5. People are getting the modifications elsewhere
6. More people learnt to program/code and are making their own modifications
7. Less people are clicking the install button (like myself, I've probably only marked like 5 mods here as installed other than those I've actually released).
8. People are still using the older version with the newer forum version.
9. People clicked install then clicking uninstall without actually uninstalling the modification.
10. People installed it and simply uninstalled it again for some reason.