Thoughts on making giveaways in order to weed out bots?

Like you create fake giveaways or unwanted games to make them waste points and then do something you care about? Both wouldn't work, so you may have better idea on mind, can you elaborate further?

waste of a key imo.
Its a never ending problem. You weed out 2, 20 will follow.

If you value a key/game enough keep it safe from bots; dont public GA it (high levels use bots as well) and stick to trusted groups. And/or invite only GAs using an optional tool like SGtools.

I'm so tired of this paranoia everywhere...

I use a chrome extension to quickly click join giveaways and also post a thank you on each giveaway, I don't read the descriptions (if I won a game and failed to read the description, ie, only redeemable in a country that isn't where I'm at, I'd simply tell them I cannot redeem it and they should find another winner) but that's entirely on me.

You have good intention. But that's it. Anything beyond that part is simply gonna waste your time.
Your so called "plan" has nothing to do with bots. You are gonna blacklist some users. That's all you are gonna achieve. You won't weed out bots. You are gonna weed out just random people.
Those users may be normal users, they maybe bots, they could be literally anything.

Or maybe try to approach the situation from the other side?
Follow active community members who create giveaways, add them to your whitelist and create a giveaway exclusively for your whitelist.
Well, or create a group “Bots are not allowed” and accept people into it after viewing their profile to reduce the likelihood of joining the bot’s giveaway.

I dunno how bots work here, but another raffle website I know occasionally makes "honeypots raffles", aka raffles that are invisible in the main page, where the "Join Giveaway" button is not available, where it's made very clear that if you join you'll be instantly banned, only accessible to bots that scrape the main page via source code and join raffles automatically using JS. The items being raffled away don't even need to be real, so nothing of value is lost.

Here's a solution for you, SG adds a captcha challenge to every "join giveaway" button 😂 No more bots!

By the way, thinking about the problem, I came to a simple and seemingly correct logic.
Add all the people from whom you have ever won keys in distributions to your white list. And when you create a giveaway with something special, you will already have an extensive list of people who have already given you positive emotions!

You'd be better off joining a group or using whitelist to choose who to include. There are too many bots, and not enough blacklist slots.

I like this idea, but it only works on an individual level since the admins are overwhelmed by unrelated requests.

It would be probably be more efficient if the site would simply require all users to solve a couple of linear algebra problems once a year.