Medium-length materials prevail on 'Comments on:' that may be an effective tactic to grip their readers’ attention with a wider range of helpful content. There are also a few longer items, which can provide a deeper insight into their subjects. Moreover, there are a few short articles.
Advanced readability level of 'Comments on:' content is probably targeted at well-educated subscribers as not all readers might clearly understand their texts. There are also some articles with medium readability level.
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).