I know a guy that single hands a 44 ft boat, it's all in how she's rigged and how proficient the skipper is. Find one you like and see if they will let you take the sails down by yourself on the dock. That will answer your question.
As far as replying to old posts, it's generally advised to start a new one if you would like to discuss a topic. However, anyone that wants to resurrect an old thread that contains information relevant to the discussion they would like to have is fine by me, but most seem to be done by new members by accident. If intentional, one can put a link to the old thread in your new one.
You will note, however, that this thread was resurrected by answering someone's question that was asked 4 years ago. That is a common newbie mistake, as they arent used to seeing when the post was made to know that their answer isn't relevant to the inquirer anymore. In fact, the original poster, whose question was being answered, hasn't even been signed on the forum since Dec '07.
I would agree that some get their shorts too tied up in a knot over this, so hopefully, those of us that point it out do so in a constructive tone. This supposed to be a fun place.
Edit: I coincidentally stumbled upon an example. Here is a new member's first post ever, responding to a request for deliver crew from 18 months ago. That ship has sailed.