>Would you try such a crossword?

As a long time cruciverbalist (40+ years), I would hate it.

Not because it's interactive, but because it adapts to the solver. Which kind of defeats the purpose of doing a crossword.

Which is to stretch your understanding of language and vocabulary. Adapting to "your solving speed and skill," is dumbing down the crossword -- which is the opposite of that.

Yuck!