Depop is very much the opposite of flying under the radar. They are a key player in fashion and love nothing but flashy promotions, they’d love to be associated to any big brand. They are not as big as Farfetch (disclaimer: where I worked) but both companies are pillars of fashion-tech scene in London.

Their marketing and social media presence is as large as they can get it (I know their former Head of Social media and VP Product). Being successful there is a first step to becoming an influencer. As a second-hand market, they’ve been carried by the environmental trend lately, deservingly so. Their audience is younger, more female and fashion-forward and in that very seeked-after demographic, they have incredible numbers. There are American companies, like Vestiaire Collective, that offer a similar service but Depop is making strides around the world.

There might not be a lot of overlap with your interest, or those of many people in Hacker News — and that’s fine. But, to fin equivalents, saying that TikTok or Tampax are "under the radar" brands says more about your curiosity than it says about a product used by half of the population.

They're not a "key player in fashion". A key player in fashion is Prada or D&G. They're a niche company dealing with second hand streetware items.

How on earth does Tik Tok or Tampax relate with Depop?

P.S. As a general rule of thumb we try to avoid personal remarks in here when replying to a person. Just to keep the place a bit more civilized.

Depop really isn't a niche company. It's effectively instagram but the clothes are for sale. Companies relate to the consumers the same way they do with instagram influencers, product placement.