If you cannot out compete "AI SLOP" on merit over time (uptime? accuracy? dataloss?), then the AI SLOP is not actually sloppy...
If your runway runs out before you can prove your merit over that timeframe, but you are convinced that the AI is slop, then you should ship the slop first and pivot onec you get $$ but before you get overwhelmed with tech depth.
Personally, I love that I can finally out compete companies with reams of developer teams. Unlike many posters here, I was limited by the time (and mental space) it takes to do the actual writing.
Anything that is meant to be read as content should absolutely, without fail, be selectable and copyable (assuming appropriate permissions).
But stuff like tab headers, buttons, or even text-sparse tiles - things meant for the user to click on - can, and usually should, prevent text selection. It is super annoying to be clicking back and forth through tabs only to have some text erroneously highlight and then stay that way.
Exceptions to every rule, and to every exception of that rule, of course. But for the most part, allowing text highlighting in those clickable areas is a rough UX.
* note that I did not include anchor links; those are meant to be inline within text content and should therefore be selectable.
EDIT: I want to add that "training on chat logs" isn't even the issue. In fact it understates the danger. It's better to imagine things like this: when a future ad-bot or influence-bot talks to you, it will receive your past chatlogs with other bots as context, useful to know what'll work on you or not.
EDIT 2: And your chatlogs with other people I guess, if they happened on a platform that stored them and later got desperate enough to sell them. This is just getting worse and worse as I think about it.
They can just prompt "given all your chats with this person, how can we manipulate him to do x"
Not really any expertise needed at all, let the AI to all the lifting.