Only had one real quibble, for Sanguine there were answers for both peaceful and red.

The grandmaster tier actually felt easier than the previous two because the red herrings were so blatant.

89/100 for an estimate of about 73k known words!

at least three

93/100. Estimate of 74,750 known words.

I definitely guessed on some of them, and had decent luck.

Enough to be able to communicate.

At least 5 8 of them.

97/100

I had a vague sense of one I got wrong and second guessed, picking the opposite. Two of the 97 were 50:50 guesses.

Oh, and it estimated 81,250 words.

Not enough.

I was going to say "at least three", but someone is always faster. Instead, I started the quiz but got bored by entry 10.

Not a native speaker, got 88 - although I'll admit a few were a lucky guess.

All of them. I could prove it, but it'd take a long time and I've got stuff to do, so…