The most disrespectful pattern I encounter regularly on reddit is that it forgets that I want the nicer, more compact interface. There will come a day when they remove it entirely, clearly, and that will be the end of my reddit usage, more or less.
If you access Reddit via https://old.reddit.com it's always the better UI. Bonus is that this works even if you're not signed in.
There's a handy browser extension for automatically redirecting you if you click a link to Reddit's other domains: https://github.com/tom-james-watson/old-reddit-redirect
If you'd like to disable custom subreddit styles even if you're not signed in, you can add these custom filters to uBlock Origin:
old.reddit.com##^link[ref="applied_subreddit_stylesheet"]
old.reddit.com##^#header-img-a
old.reddit.com##^.infobar.listingsignupbar