If this is about bitcoins reputation around the web,there are a lot of other areas I would target as well.
Racism,sexism and homophobia are great places to work on if you want to change bitcoin into more of a mainstream tool.
Lending is also a predatory business that mostly goes after the people that are going through a rough patch or are stuck there.
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It's not about non-GC-sellers or those who sell gift cards agreeing or disagreeing. The point here is why punish those who are selling their legit gift cards due to scammers/illegal card dealers. When Amazon/Starbucks have not removed the option to pay with a CC even though many use stolen cards, it doesn't seem logical for the forum to stop all the sales. When people suggested that newbies should not be allowed to post in Digital Goods/Currency Exchange sections, I too opposed that as not all newbies are scammers. Stopping all sales/exchanges doesn't make illegal sales/exchanges stop.
It seems both of you are somewhat off-topic:
@Zeke2345, let's focus on stopping giftcard money laundering for the moment. We can leave the rest for other threads. Feel free to create them if you think they're required.
@erikalui, while I do think we should ban selling gift cards and you clearly do not this is not the subject of this thread. I do agree it's arguable and I don't want to even get into that.
As stated on OP the subject here is stopping the sellers who clearly sell illegally obtained cards. It seems to me you agree on that.