Gundato: Take a look. TES3 largely became an affair of Better Bodies mods (and gear that makes Chainmail Bikinis look downright prudish) and TES4 isn't much better.
xa_chan: Gee, we might not go on the same modding sites, then, since when i go to TESnexus, what i see is a great variety of mods. Of course, there are lots of armours mods, because they are relatively simple to make. But there are also lots of gameplay mods, overhauls, areas reworking and so on...
So, saying that TES4 modding is now just a pastime for obsessed freaky nerds is as far from truth as if i was saying that all SC players are living in their parents' basement at the age of 35! ^_^
Who said that? I argue that all Starcraft players are Koreans who like Pokemon. Get your facts straight :p
DISCLAIMER: just so nobody has a cow, I am joking.
And just taking a gander at TESNexus's top 15 (i got bored around that point, so maybe the trend doesn't continue):
At least 3 are outright listed as Adult-Only (I clicked the ones that seemed most likely to be "adult")
1 is a companion mod with "heavy customization" and the like. I suspect that if I were arsed to grab it, at least one of those would involve lingerie (the other companions I grabbed that have similar levels of customizability had similar customizability)
So 3.5/15 are "adult"-oriented
You are right. it IS largely because it is easier to make an armor mod than just about anything else (especially since the TES4 CS kind of sucks worse than TES3's :p). And, let's be honest here, the average fantasy fan has the maturity of a 12-year old (I am a sci-fi fan, so MY maturity is that of a 13-year old :p), so chainmail bikinis and the like aren't too far-fetched.
But still, there is an obscenely high ratio of "adult" mods to quest mods and the like. Or, at least, it feels that way.