There is a reason for requiring photos and prices of items for sale, it helps prevent scamming and giving the unpaid/unthanked moderators a hell of a time trying to sort out the issue despite the site not having any ability to pursue any offenders. It is not difficult to do.
If you do not like the rules, go and advertise somewhere else like tardeme where there is every chance you will be ripped off/answer any amount of ridiculous questions/ not get any response from the auction winner etc etc etc.
Your choice.