Mannahnin
Scion of Murgen (He/Him)
"Giant kin" in what sense?Originally all the oddball himanoids were giant kin. So yeah it was a nice buff
There was no fluff or in-world fiction saying that orcs or kobolds were related to Giants. They just all happened to be on the same random wilderness encounter sub-table on pages 18-19 of The Underworld & Wilderness Adventures. Along with Gnomes, Dwarves, Elves and Ents. Or are you saying that in OD&D dwarves and elves were meant to be related to giants?
The original Joe Fisher Ranger class in The Strategic Review #2 said "All Rangers gain a special advantage when fighting against monsters of the Giant Class (Kobolds - Giants). For each level they have gained they add +1 to their damage die against these creatures, so a 1st Level Ranger adds +1, a 2nd Level +2, and so on." By noting "Kobolds-Giants" he meant for us to ignore the last four entries on the table (Gnomes, Dwarves, Elves and Ents).
In AD&D Gary expanded the list of monsters and listed it directly in the class rules (as follows), and retained the "giant class" language, but that term had no meaning except "the monsters a Ranger gets a bonus against".
When fighting humanoid-type creatures of the "giant class", listed hereafter, rangers add 1 hit point for each level of experience they have attained to the points of damage scored when they hit in melee combat. Giant class creatures are:bugbears, ettins, giants, gnolls, goblins, hobgoblins, kobolds,ogres, ogre magi, orcs, and trolls.
It refers to nothing in the AD&D rules. Which is why he had to give the complete list of monsters Rangers got the bonus against. The only other thing "Giant class" meant was to tell OD&D players that this was the updated version of the same rule. If you look at the outdoor encounter tables on DMG 183-189, there is a "Giant Type" subtable, but it only has actual giants on it. There is a separate "Humanoids" subtable, but it's only got 5 of the other eligible monsters on it.