Short articles, prevailing on the channel, can be a good choice for 'Worlds50' if they’re going to gain their audience’s sympathy with brevity. Also, there are a few medium-length pieces.
'Worlds50' mostly contains texts of a basic readability level which may show their aim to reach a wider audience. Besides, there are a smaller number of articles of intermediate readability.
Neutral sentiment normally indicates an unbiased attitude that prevails in the channel’s articles (e.g. it may include some kind of scientific or professional materials).