I receive often invitations to serve as TPC (Technical Program Committee) member. Some are from my colleagues but some are just from random people who I don't know. If I agree to serve as TPC member then I get papers to review and this is the only task assigned to me.
- Shall I be listed in on the conference TPC member list in this situation?
- Is it ok, to ask the organizers to update the webpage?
In fact, I am only a reviewer, but I invest my time to read the papers and write the feedback. I treat it seriously and reviewing ~10 pages paper may take me up to 3-4 hours. It is pity that I don't get any mention on the official webpage although I have contributed my time and expertise.
Comment to the accepted answer (I don't have commenting privilege yet): I accept the interpretation A of your answer, because the only duty of a TCP member for the conference that I got in my mind is to review (or delagte the reviews) for several papers.