"Likes" are possible if you create channel messages via bots. Well, it's a kind of enhanced like. It's called reaction, you can predefine one or several smiles

"Likes" are possible if you create channel messages via bots. Well, it's a kind of enhanced like. It's called reaction, you can predefine one or several smiles / text entries and channel readers can vote for it under the post. Some bots have convenient option to schedule posts or create self-destroyed messages and lots of other functions. Comments are also possible via external bots. The discussion isn't really inside telegram though. But navigation in channel is pain. Especially if you want to jump into the beginning where was no pinned message and channel has long history. And when you subscribe for many channels it becomes a nightmare to segregate channels and users. They need to improve that experience.