I think Autumn has a point though. From the Guardian article:
"This came after a plea from sex workers that mobilised hundreds of individuals and organisations, including the Hampshire Women’s Institute, Women Against Rape, the Royal College of Nursing, church groups, trade unionists, academics, lawyers and anti-racist and anti-poverty campaigners, to write letters urging MPs to oppose the legislation."
These are respected groups in society -- why would a non-specialist assume that their stance is part of the pimp lobby? Obviously more digging would reveal things, but a casual reader wouldn't know. Accusing someone of promoting the pimp lobby view is pretty insulting, unless you have history with the poster I would give benefit of the doubt.
There is no debate around the suffering of women but clearly there is a debate about the best policy to ameliorate that suffering, as with any social ill. Some people will shoot down new approaches because they want the status quo and to keep oppressing women but some people will just think a different approach is needed. I don't think it's fair to lump them all in together.
For example, I am really curious to see that Women Against Rape opposed the bill. Can someone shed some light on that? Do you think they are a good organisation just badly aligning themselves on this issue, or is there something wrong with them altogether?
(I hope it's clear that by asking this question I am NOT condoning prostitution, I just think there is no magic policy to address it, and having a policy debate is not the same as wanting the status quo.)