Is there anyone who has ever made, or at least, is interested in participating in a Telegram chat group to discuss IPFS?
Not sure if it has any any significant advantage over Freenode, but IPFS has a sub on Reddit, too, after all...
Use of closed and proprietary solutions such as Slack (or Telegram) was discussed in ipfs/community's issue #57.
Community consensus is to stay on IRC until IPFS-based alternative is developed and mature enough.If you are looking for IRC client that feels like Telegram/Slack, give https://www.irccloud.com a try.
As a rule of thumb, we want to use free and open source solutions instead of proprietary ones (where possible). This very forum (based on open source Discourse engine) aims to replace proprietary Google Group and Reddit and provides single place for asynchronous communication.
Hope this helps.