I haven't seen this. At all.
...
so i hope you may assume that there are players with different experiences. i can imagine that you are mostly playing in very the same realms most of time, and know some characters for years. and very few things changed in that time.
i am prone to avoid such realms, for the very same thing you may like it. if i see there is no any changes for years, i prefer to go to more "dynamic" realms. such realms are often destroyed, so i have to change realms often.
that gave me large sample. and when i am "testing" new realm, it often lasts not less than six months to year or even more.