I see it, at least, as a closed group with the ability for all participants to edit all messages. Or they can be separate pages on telegra.ph with search, cross-references and simplified formatting, like wikitext (wiki markup, wikicode). Perhaps it will be a form of a channel to inherit the ability to discuss articles without changing their text. This feature will be of interest to teams working together on the same project who want to use a single reference book of notes. It may also be possible to make this a paid service for organizations looking to implement wikis into production processes, but are not ready to deploy their own cloud platform.