Hmm, of the people I have met:
Angie is 100% the same way she is IRL as she is online. I described her to Lisa as a blonde Audrey Hepburn. Very elegant, bubbly, and sweet.
I think Tanya is the same too. Sweet and soft-spoken.
I haven't known Lisa for too long on the forum but I didn't see any noticeable differences. One thing I noticed is that she has an ageless way of speaking online. I know that sounds weird. Often I can guess how old someone is by how they type and what they talk about, but I had no idea how old Lisa was just by reading her posts.
I have not yet met Michelle (hopefully soon though!), but we have chatted on the phone. Since we both have a snarky side I think our conversation was much different than either of us come off on YLF. Not everyone can appreciate that side of me but she can!
Steph is pretty similar IRL and online. Pretty outgoing, kind, and very helpful as a shopping partner with gorgeous hair and magical feet!
Shana was more smiley than I expected! Good sense of humor too. Not that she is unusually dour online :p
Medusa seemed a lot softer and girlier than I expected (I hope that doesn't sound awful--read on first!). I always associated her style with being less frilly and feminine and more tailored/funky/androgynous, and I thought of her as being a rock climber and an outdoorsy person who preferred minimal fuss and ruffles. But there she was in bright pink cowl neck and a floral pin, although there were still funky andogynous elements like the waistcoat and oxfords. I loved that outfit!
Debora is exactly the same. She was our YLF cheerleader for the day. Very sweet and gentle.
April has a very quiet voice but is quite witty and funny. I'd say pretty similar to her forum self. And don't let her fool you. I was totally expecting to see a head of unruly, wacky hair when I met her, based on her own description. Instead I saw the most gorgeous glossy dark curls ever.
Laura is also 100% the same. Sweet, great insight, fabulous style, very articulate. I think I was there at the early stages of her frock obsession. That seems so long ago now. Sigh.
Marianne is pretty much how she describes herself, minus the inarticulate part. That would have never even occurred to me.
Am I missing anyone? I have yet to meet a YLFer with whom I haven't hit it off immediately!