Yeah, cooltoadfrommoon is part of that bumping group. 3 other accounts that are doing the same thing in their ANN are
tex173,
prettiestgirl and
NITER2018. They are active on Bitwings ANN for quite some time, and recently they started working on another,
Coindragon, that is some kind of online casino. I doubt that it is an coincidence, same 4 accounts doing he same thing on 2 completely unrelated threads.
As for their phone, is probably a clone of a clone, the best match being an umidigi z2 pro, a 300$ phone
Yep, type of the phone that you can easily order in China and just put your name on it, as many other are doing. They have been promising to deliver that phone to people since mid 2019, and people are still waiting for those, while some of them paid for the phone in February/March 2019. Back then 1 BWN=0.1 USD, so price of the phone was 600 USD.

Now, assuming they have the "software" capable of doing so, why would you sell that thing and not mine by themselves?
Escobar folding phone reloaded.
Official explanation would be cloud mining I guess, but they advertise it a phone itself would mine that ETH, even comparing it to the mining rig.

But even with cloud mining, profit they promise is way too high and I don't see how can that be sustainable, without them constantly loosing money. Renting 1000 MH/s for 3 years is very expensive, and yet they will charge those that buy the phone only fraction of the real price.