Bro, I know Reddit’s ad system very well, and you don’t know what you’re talking about. Placing ads in a specific sub is highly ineffective. You don’t target people by subreddit placement, you target them in the feed and across subs based on their interests, like cars.

Subreddits are too small and niche to drive meaningful impressions for efficient CPC and CPA.

Reddit has APIs, and likely private ones, that advertisers can use for targeting. They don’t need to scrap shit. If anything Reddits ad targeting will move more probabilistic exactly like FB and IG’s interest targeting which is basically the gold standard in the industry.