This is a good idea.
Perhaps it is not worth focusing on a specific channel, given the comment about the presence of a number of Arbitrum accounts with a large number of subscribers.
Perhaps it is worth developing some kind of incentive system for channels that will somehow promote voting, report on DAO events and their discussions.
Depending on the number of views, retweets, channels would be given small rewards.
Thus, Arbitrum would have a large pool of accounts that would have incentives to inform their subscribers at low cost.
To do this, it is necessary to think over a budget that will be small, but sufficient for the accounts to be interested, and describe this in a specific proposal.
Thank you for the feedback. This is our purpose in reality, we want to be a coordination function between the large arbitrum community as outlined here.