And now here's an attempt at a serious answer.
If I remember correctly, he represented an entirely different sector of the universe probably light-years from either Earth or Namek. That, and if Namekians could get strong enough to crush Frieza, his dad, and Cell at once without problems, I think we'd have heard about them.
No no, you have that backwards. Pikkon can beat
Super Saiyan 4Broly.
he is an alternative universe version where Gohan and Piccolo fused.
shares VA. name takes first half of piccolo and second half of Gohan. has Namekian mixed with human features.
The fuck is recoome from? He looks human other than him being tall as fuck. Of course all of the Dragon Ball characters are pretty manletty despite their muscles. So he might just be tall for a regular human.
Well he's dead, and thus could be from any point in history.
So Buu, and Beerus are both options. Plus there's no reason to believe he was always this strong before training with his Kai, could have been a a member of Frieza's family.
No, Paikuhan is an anime-only character. He was introduced in the Afterlife Tournament arc (immediately after the Cell Games), and showed up in Movie 12 (Rebirth of Fusion) later as well.
Kuririn became stronger than Recoome while still right there on Namek. The boost from the Grand Elder was apparently cumulative and gradually brought him up to at least 75,000.
Recoome was probably around 40,000 since he beat up Vegeta ("almost 30,000") but got wrecked by Goku (Ginyu guessed 60,000, was actually 90,000).