If you RtFA, you would see that she considers resellers, and points out that most clothes that are fashionable- especially for women, who are always judged more harshly in this sort of situation- don't hold up to wear and washing very well. One of the categories is specifically described as "ultra-cheap items that obviously wouldn’t survive machine washing but that would cost more to dry-clean than they did to buy." She also considers the larger point that "the resale economy, too, has boomed, and you can find new buyers for your old clothes on a slew of resale websites and apps, including eBay, Poshmark, Depop, and Facebook Marketplace." Reselling, however, well, falls into exactly the same consumerist trap that you started out proclaiming was the problem: "But the bigger issue, Le Zotte and Bédat both cautioned, is that resale apps and services aren’t really a bulwark against overconsumption, even though they feel that way (and even though they’re often marketed as such). Buying secondhand is definitely preferable to buying and discarding brand-new stuff, but if you’re constantly cycling through clothes and chasing trends, then you’re still just as much caught in the teeth of the fashion system as the rest of us."
The lesson that I took from this article is that being a male computer engineer[1], and thus having social approval to look however the hell I want, is a great perk that I do not explicitly value enough. In fact, it is because I don't have to think about what I wear- I literally have a rotation of shirts and pants/shorts and just pick whatever is next in each category- that the perk is so large and I undervalue it so much.
[1]: It helps that I fit into essentially every dominant caste category for my local region, I suspect, but my sample sizes are small enough here that I won't comment about that. My sample sizes on female computer engineers is large enough that I feel comfortable saying that they are held to higher standards of dress than I am.