Date is the activity of looking for a suitable partner for a relationship. The word refers to two daters agreeing on a time and date when they can meet and engage in some activity, thereby assessing their suitability for one another. Typically a person may date many different partners during the same time period in order to have the best chance of finding their most suitable available mate. As in the marketplace, liquidity is essential for all participants to achieve the best outcome available to them.
A blind date is a date where the people involved haven't met each other previously. The match could have been arranged by common friends or by a dating system.

Blind dates have become more commonplace following the rise of the Internet, when people who have met in chatrooms or forums finally agree to meet in person. Afterwards, they go to a place where they can have time to talk and get to know one another.

A blind date is defined in the Ph.D. dissertation of Robert E. Berend as "a first face-to-face meeting (...) with the purpose of getting to know each other in order to explore the possibility of a romantic relationship. The goal is a relationship or partnership, possibly sexual, of either one date or longer. Meeting someone through work, a social function or face-to-face in some other way beforehand precludes that person from being a "blind date." (Reference: Ph.D. dissertation of Robert E. Berend entitled Perceptions of Chemistry, First Date Selection Criteria and Factors in First Intercourse from the San Francisco Area, September 22, 2003.)

I wish you to comment on advantages and disadvantages.