RPGMemes

Honestly, I don't mind people who hack 5e as long as they're upfront about it (as in, don't invite you for Cyberpunk game only to reveal it's a 5e Cyberpunk hack at character creation). This is a way some people express their creativity. It's kinda like how despite there being other games at the time, hundreds if not thousands game devs started from designing levels for Doom or hacking Doom or converting Doom to new platform. It's now happenning with Skyrim.

A lot of RPGs started as d&d hacks - Runequest, which lead to Call of Cthulhu, started as "what if we only ruled d10's in d&d". Tunnels & Trolls exists because creator read d&d book and decided to hack the rules to be more for his liking. Warhammer exists because Games Workshop needed a replacement game when losing rights to publish d&d in Britain. Pathfinder is a similiar story, it was just d&d 3.55 (and sucked just like 3.5) before 2nd Edition.