1. The Agents are more in the field as face the incidences on daily & routine basis, their experience/exposure carries substantial value and they extend this benefit to bloggers at large.
2. The can be of help in booking.
nothing illegal or influential can be expected accepting better way-out in some circumstances. This can be explained in this way:
A. A blogger is not...
more... getting a Tatkal availability from halt E to halt P. An Agent can guide to try from halt D or C, OR to halt Q or R.
B. A blogger does not understand how to change a Boarding Point - an Agent can be of good guidance in this regards.
C. A blogger is puzzled of his charting having not been done; an Agent can let him know the actual appx. time of charting.
These are the few matters, on which and on other matters, an important reply from an Agent can be expected.
However, please note that such information / advise (excepting booking of tickets) can be and is being extended by a number of expert / experienced Bloggers / Admins also.
Thanks!