Web 2.0 client
To preface: I don’t think I’ve ever had Skritter use the “LEECH!” flag and show a leech appropriately. There have been plenty of words I’ve failed to learn that it never triggers on, and when it does trigger I usually have no idea why.
In this case I hit a cluster of words in my list ending in 然. After several reviews related to those it popped up 然 by itself as a leech (not remotely true) and now it seems to be back to “just learned the word” levels of making me write 然 by itself. That seems extra odd considering there are even words including 然 it could be making me write where I’d benefit at least from half of it.
If it matters, I was very close to 0 words due at the time.