Let's make this a bit more complicated:
yfmoonbeam's twitter is
https://twitter.com/yfmoonbeam, it points to yfmoonbeam.com , everything looks normal
But:
yfbeam's twitter,
https://twitter.com/yfbeam, points to yfbeam.network,
which is registered on 2020-09-18, making this one of their domain younger by two days than the "competitor" but even from a quick look at it, you can start wondering who the hell would make such a site besides a 10yo.
But, I have a feeling both are really really shady and that everyone should stay away from them, original or copy, all they have is a 3 pages website with the same wording as hundred of scams, promises, and no clear utility or proof it will ever be used or solve anything.
