As for not seeing feet, I heard a theory for why that is. The camera is inside the character, looking through their eyes, so-to-speak, rendering the body invisible (the arm is actually seperate). The feet can't be visible because of where the camera is.
Very possible.

Another theory I have is that the player doesn't have a body at all..at least according to the player. It would just be a waste of processing power. Other players' screens/computers draw the 3d models of you wherever their computers think you are, but there is no need to render and process the physics of a few thousand polygons on your computer if we can get away with an invisible cube that can collide with stuff to fake it.

This actually doesn't bother me, either.
Okay, let's see...
Racing games:1) The trend of so many racing games being an "underground" or "gangster" theme. What happened to Need For Speed games where you're just a person with a fast car?

Why does having a fast car automatically require you to be a shady, questionable character nowadays?
Other Comments:1) Level editors that are basically useless. I quote Smash Bros. Brawl specifically on this one. There are countless other examples in the past and present as well:
Wii: Boom Blox (the custom levels can't be added to normal gameplay, have no way of declaring a winner, etc),
N64/Dreamcast/PC: RE-Volt (the track editor is so stupidly basic and inflexible it's not even worth using, though this game was from 1999 I believe).
2) Taking perfectly good features out of sequels, rather than just expanding the game. Again I'm pointing fingers at Smash Bros. Brawl. Question: Where's Bonus mode??

Where are all the cool points from playing the game with style? That was a cool feature in Melee and was completely removed for an unexplainable reason. It was how all my friends and I preferred to play SSB; as a result, nobody wants to play Brawl with me!

There was a time when putting a "2" after a game's name meant "the same game, made better!": New stuff, better graphics, better controls, you name it.
Doom
Doom 2
Quake
Quake 2
Unreal Tournament
Unreal Tournament 2004 (aka. 3, technically

)
Smash Bros.
Smash Bros. Melee (aka. 2)
Nowadays, you never know what the heck you're going to gain and what you're going to lose in a sequel.
Doom 2 -> Doom 3 is like playing a COMPLETELY different game! Doom 3 does not contain what I liked about the Doom series. This is the general trend I've been noticing.
Jsut an FYI: Doom 64 was awesome.
