What is the philosophy behind 'losing' known words?

[edited - original was too long-winded!]

The LingQ system must know internally what words we know, but which aren’t lingqs.
Why are we prevented from seeing a list of these, or accessing or exporting them?

Thanks

This was mentioned in a different thread last year (I guess it’s two years ago now). Look at Mark’s response.

Thanks, I hadn’t seen that, interesting to read it. It doesn’t really explain though, it just refers to letting us see our known vocabulary as " gumming up". Allowing one to download this list could have no impact on the system