I remember the first slide to anarchy was vague titles. "This." or "Good boy" etc would never be upvoted. Instead you would have long descriptive titles that summarized the link.

Images became far more common to share, with imgur and then reddit providing hosting.

Subreddit politics got crazy between moderators of large subreddits and between admins and users when very questionable subreddits started popularizing.

US politics happened. Conspiracies and fake news and then The_Donald somehow taking over half of the entire front page.

I still love using reddit for the smaller communities, but to say it hasn't changed is so false. You can rewind and check out archives of the site from 10 years ago and you'll see.