the world. In a 2014 interview with Memeburn, Erik Martin, then general manager of Reddit, remarked that their "approach is to give the community moderators or curators as much control as possible so that they can shape and cultivate the type of communities they want". Subreddits often use themed variants of Reddit's alien mascot, Snoo, in the visual styling of their communities. Other features Reddit Premium (formerly Reddit Gold) is a premium membership that allows users to view the site ad-free. Users may also be gifted coins if another user particularly valued the comment or post, generally due to humorous or high-quality content. Reddit Premium unlocks several features not accessible to regular users, such as comment highlighting, exclusive subreddits, and a personalized Snoo (known as a "snoovatar"). Reddit Gold was renamed to Reddit Premium in 2018. In addition to gold coins, users can gift silver and platinum coins to other users as rewards for quality content. Reddit Public Access Network, commonly known as RPAN, was a live streaming service run by Reddit. Viewers interacted with streams by upvoting or downvoting, chatting and by giving paid awards. During the off-air hours, 24/7 streaming was possible to the dedicated subreddits, but with limited slots and capabilities. On August 19, 2019, Reddit announced RPAN. It was said to be in testing, but they were experimenting with making it a permanent program, as well as a way to increase revenue for the platform. Later, a five-day testing period began. During the testing period, streaming was for a select group of users, allowing 30 minutes of streaming per person and 100 slots. On July 1, 2020, RPAN Studio was released, an application that allows users to broadcast live from desktop computers. RPAN Studio has been built on top of OBS, an open-source streaming and recording program. On January 28, 2021 Reddit permanently increased streaming times to three hours. RPAN was officially discontinued on November 15, 2022. On July 7, 2022, Reddit announced 'blockchain-backed Collectible Avatars', customizable avatars which are available on the subreddit r/CollectibleAvatars for purchase separate from Reddit Premium. The avatars were created by independent artists who post work on other subreddits, and who receive a portion of the profits. They use Reddit's Polygon blockchain-powered digital wallet the Vault. Richard Lawler of The Verge described them as "non-fungible tokens (NFTs) that are available for purchase in the Reddit Avatar Builder"; as NFTs are controversial,