Are thongs uncomfortable to wear?

Yep

yuk

i think no

Not according to myt ex girlfriend. She swore by them. A friend I hang out with today says no way. So, it boils down to preference.

If you like the feeling of a constant wedgie, then no they aren't. I really don't like a wedgie.

yes

Depends really. Not if they are the right size, otherwise they are gonna cut into your butt crack like crazy. Believe me.

not if you get the right size for your feet

I don't find them uncomfortable. I wear them all the time.

If we're talking about the underwear, then in general, yes. Especially so when I bought my first pair. I got used to them after that, but they still give you wedgies more than regular underwear.