Wasn't civ 4 a recent tier 1..?

Still better than 4 shitty shovelware titles.
Although I've seen offers quite more manjichibateer than that.

Recently had a guy offer me 10 free games (free as in:  Indiegala-Giveaway stuff) for Soma, Ryse, Nuclear Throne.
I was tempted for a second.

Minion masters is not shovelware at all. It was a good offer if you had none of them (although it is mostly impossible you dont have Minion masters :P)

Correct, it was $1 together with Civilization III and whilst not likely being offered, Minion Masters in Humble Bundle giftlink format can be resold to a reseller for $2 cash in itself. So all in all it might not have been the greatest deals around in case it was not the better Minion Master version, it was not quite a rip off either in my opinion. In terms of gameplay value, one might have significant emotional attachment to Civilization IV in comparison to all those games offered, so in that sense this can be a great example of why it is important that traders can specify how they value their games or what quantified value they attach to a specific game, so that ignores do not happen due to misunderstandings in the sense of what is a perfectly reasonable offer for one, is completely unacceptable to another.

Not to mention the fact that I have all of those games. Most likely from the same sources.

Unless you had them in your wishlist, here at Lestrade's is not possible to send (not)wishlisted games, as far as I know.

You are correct. This was on SteamTrades, where anything goes.

Oh yes I really need to finish that... I had a bug and switched to another feature and never finished that one.