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: 7 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: 7 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: 7 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: 7 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: 7 months ago

I'd suggest using both FakeSpot and ReviewMeta together. In the end though, neither should be treated as perfect. They both can give skewed ratings on legitimately good products. It just helps give an idea of if you should be cautious and look into things more before purchasing. Source: about 1 year ago

I recommend https://reviewmeta.com if you want to see if the reviews are authentic or not. Source: about 1 year ago

This does a pretty good job of filtering out the crap - https://reviewmeta.com/. Source: about 1 year ago

This is only for amazon, but https://reviewmeta.com/ checks if reviews under a product are likely to be real or not. Source: about 1 year ago

I'll also double-check those Amazon reviews with a tool like Reviewmeta to see if they have a high number of suspicious or fake-sounding ratings or comments. Source: over 1 year ago