Asking if you should buy a game now or wait for a sale isn't allowed, asking when a game will go on sale is not allowed, asking how big of a discount a game might get is not allowed. Use SteamDB to look at sale histories on games. Source: 6 months ago

Here's how to cure you from your buying habit, checkout https://steamdb.info/, check the price history of the game you're thinking of getting. Most likely it's on sale once every odd month, and discount percentages are only ever increasing over time. So really you can just buy it when you think you have time to play it soon. Source: 6 months ago

Correct, it's trending on https://steamdb.info/ if you look at the panel, some games will show zero players. But OP is wrong, other games are trending too. Source: 6 months ago

Asking if you should buy a game now or wait for a sale isn't allowed & asking when a game will go on sale is not allowed. Use SteamDB to look at sale histories on games. Source: 6 months ago

You can use the Steam console to download older versions as described here. You can get the depot and manifest IDs from SteamDB. Source: 6 months ago

As far as I know the official site just stopped working and the download on gta5-mods.com doesn't work either. Source: 12 months ago

Lastly, I know gta5-mods.com is the go-to place for mods. I'm just asking these things because I can probably figure out the rest on my own without having to post follow-up questions. Source: about 1 year ago

Use scripthookV and download mods from gta5-mods.com. Source: about 1 year ago

I noticed that too after looking at the developer's website. The gta5-mods.com website, where I originally got it from, stated it was last updated in 2017. Source: over 1 year ago

You'll find most on gta5-mods.com by searching with the "vanilla edit" tag. Source: over 1 year ago