That's actually been a topic of study tooHave you heard of the phrase "clothes make the man"? (not being sarcastic, I ask because we do have non-native English speakers on these forums too).
Part of the reason why the fashion industry is so vast is because we do perceive people differently by what they wear (and don't wear). A guy who walks by in a perfectly tailored suit gives off the image that he's confidant, powerful, and knows what he's doing. Yet if that same man walked by you in baggy jeans down to his knees and tattoos, a lot of people would be far more wary of being around him (just to give some extreme examples). In the case of women, there's always been people judging a woman's personality according to what she wears and how little she may wear (or overdressing).
You can see similar effects in the "show your ___" threads. People comment all the time about how a character looks innocent/evil/etc. purely by the glamour they wear, even if someone else with the exact same face and body preset is nearby wearing something else. So removing that, even the base underwear and hempen sets, can possibly (keyword: possibly) have an impact on how that person is perceived in game. I mean the most common example is usually most people assume female Miqo'te dressed in metal bikini tank armor tend to be played by men (for various reasons). We all know that's not necessarily true, but that doesn't stop that initial judgement being made.
Now whether an individual cares about that is a whole different level because we move into a discussion of personal boundaries, and no two people are the same with those. Some people care more about how they look than others.
I never said "your," "mine," or "their" social space. I said that MMORPGs are social spaces, period. Your living room is a social space. The shopping mall is a social space. School is a social space. This forum is a social space. Anywhere that you have to interact with other people is a social space. Trust me, it's not a brand new term made up to protect people's feelings as you seem to imply here (and if you're not I'm sorry for the assumption).
Otherwise...yeah I have to admit I don't really know where you were going with this post. You're allowed to have your preferred aesthetic, but that's not going to stop people from making judgement about you from your choice in aesthetic. Everyone does it, as I said it takes mere milliseconds, and we're often not aware of it (something as simple as even noticing "Oh hey, that man's wearing pink!" and then moving on is a sign of how society has formed our views of what's normal for a dude to wear and what isn't). It's not typically done to hurt anyone's feelings or to offend, we're just conditioned to be that way. Now most mature people can get past those initial first impressions, if they have an interest to do so with you. Otherwise the judgement is made, and they move on and forget about you in most instances. That's not done to be rude or offend anyone either, it's just how people are.