“My number one concern right now as an advertiser would be that Reddit seems to be losing rapport with and control over their users. Reddit needs to talk to their community members now and work to regain their trust and support or risk losing brand advertisers long term.”
We'll see. The article also notes that no company has pulled their ads from Reddit yet and even says that compared to some other sites, Reddit isn't doing so bad (I'm assuming they're implying Twitter's refusal to remove hate speech).