There is nothing inherent in being a traveler that makes them "weird", though they may be unusual because of their unusual life. I can't see why either having or not having stuff is relevant.
Travelers make great friends who I miss when they are not around.
I hate to sound negative, but I find that some of the worst bores are people who can't stop talking about their last journey. Having been around the world a few times myself, I often have to bite my tongue to stop myself from telling too many "that reminds me of this one time in [random city X]" stories, as people do get bored of hearing them, and they're rarely as interesting to others as they are to the people who were there.
[1] This means not only listening and popping in with comments and questions here and there, but actually trying to imagine the feelings you would have experienced had you been there; or even more interestingly, understanding how the storyteller felt in the context of his or her own life (this requires knowing the person rather well).
[2] The intent is really the main thing here. Some people approach storytelling about their adventures as a way to brag. The "right way" to do it is to tell the story in a way that the listeners can imagine themselves there. This changes the context from "I'm cooler than you," to "I had a great experience that I'd like to share with you."
I did a decent amount of backpacking back in the day, and I remember the initial adjustment to be pretty tough and very lonely if you're not already a very outgoing type. Initially I hated it, then eventually I loved it, but some may not.
Listen and weep:
http://brandonovak.com/nudie-novaks-sexcapades
"When he was a homeless heroin addict, Brandon banged a waitress INSIDE OF A DUMPSTER."
I do like the term "settled society", as there is a strong temptation to see people who don't do this as having settled for something adequate.
Travelling only changes your location, it doesn't change who you are. Who I am is someone who has trouble meeting people, but found that travel provided more opportunity for social interaction and people more willing to be open with me.
There's also a difference between being a "traveller" and just being a guy with no home and no stuff. The article seemed to be more about the latter.
My experience hanging out with backpackers is that they seem to get laid (by other backpackers) rather frequently. Of course, the ones who are traveling with committed partners have a lot more sex (with each other, mostly) than the ones who are just hoping to meet random promiscuous MOTAS. But there's a lot of scope for people to travel together for a few days, weeks, or months before becoming committed partners.
And sometimes travelers will stay in a city for weeks or months and meet more people.
I think it depends largely on how easily you make friends.