It actually is Hubcap, just not the G1 version. The ebayer has listed it incorrectly, and DD is just quoting the item's listing (but could have mentioned the error for those who aren't familiar or are new). It's Machine Wars, which was released in 1997. Definitely not G1, which ended 1991-93, depending on your perspective.
Machine Men/Gobots, yes. It is fairly common on ebay though for people to label a variety of convertable toys as Transformers just for buyer familiarity. It's usually not intended to decieve, if it isn't used to describe a KO.
Please refrain from using derogatory terms here. You can point out what someone is doing that is wrong, but just don't call them names. And ease up on the criticism too once the point has been made. We are all aware of what this particular dealer has done with that Fort Max, we don't need to continue crucifying him over it. It's just petty, and makes us look bad.
We can alert the members here of any dodgy behaviour on ebay, but leave it at that. That is all we can do here. We don't have the authority to hound ebayers as if we are some elite source that they should bow down to or follow.
That looks to be a counterfeit Guard City. As Jay pointed out, Battle Gaea is the Combaticons redeco, Guard City is the Protectobot redeco.
Either way, that's a lot of money for a counterfeit Transformers toy.