Probably not, with that said if the ceilings are in pretty good shape leave them alone unless a potential buyer asked for smooth ceilings. Clean white ceilings will not draw too much attention regardless of texture.
David Dovell The Ask John and Dave Show The Home Improvement Show http://www.askjohnanddave.com
If you remove the popcorn texture, you will be removing an obstacle to the sale, but only if it is done properly and done completely. It will likely help you sell the property more quickly but probably not add to the value. Buyers are very discriminating right now and have a very low tolerence for anything they don't like in a home and the popcorn texture is no longer desireable.
If you have had negative feedback about it, I would take it very seriously. No seller can afford to have a buyer walk away today for something like the ceiling texture. Get a quote for the work before you decide.
That is a great question! It is difficult to answer and impossible to measure. I, personally, think it would, but probably only negligibly so. BUT, even if it doesn't increase the value, I think it might help your home sell a little quicker.
Like Bill said, you will have a long list of considerations to keep in mind and this should fall pretty low on your list. But, you never know.
It's doubtful....this is a personal taste or interior decorating preference that would not have a significant impact on the value of your home.
You may want to consider looking at your home as a total package. What is it appeal? Will buyers be receptive of its appearance? Is it fresh and clean? Are the bath rooms, kitchen, and appliances up to date? Do people driving past find it appealing?