Hi embii,
Thanks a lot especially for writing this summary for everyone.
Consider getting your testnet network operational as this can be used as a temporRy data store for things you do not want to persist forever like group chats.
Just to do a bit of double-checking and to make certain we've all converged on the same testnet -- is your testnet swarm at height 4521 presently, with a block hash at the tip of d61407a09506df6ef440abaa4d6392c20e30b72470e77bf40ae68e9008f302a6?
Best Regards,
-Chicago