No need to shut down the TG channel, but I agree with your sentiment, today I spoke with Rinse about his idea for an official plebbit blog, we agreed I should work on it. We will centralize all development-related announcements on this blog/subplebbit, and that info will trickle down to all other channels. You will be able to reply to blog posts like in any other sub, but only the team can publish blog posts
Yes, do it.
Investors can invest on a risky project. But they have to be somehow reassured a little bit, especially in they don't understand 100% what they are investing in.
Roadmaps, if real, do this for them.