As the twitter platform is comparatively personal. Ensuring the exchanges have some form of follow ups is beneficial to the host. If the users are made to feel special, then it is almost guaranteed that the host site will garner the desired traffic which will eventually be converted to revenue.
Spending some time to personally address issues or comments will encourage the user to stay loyal as they perceive their participation to be well received and valued.
Being consistent, as in a daily basis also is another element to consider at it allows feedback and comments to be shared from a more current standpoint.
Building a rapport with the users is always a good idea as both parties will eventually attest to benefit from the exchanges. Building the list of customers, prospects, potential buyers all depends on whether the material being discussed is of high interest value.
Having a great product or service is of no value if it is not made known to the masses.