I don't know if that worked but if that was the only instance of asking for reviews, I don't think it did much of anything. Here's the 7-days-filtered reviews for ch16-23:

155 199 [199] 159 209 133 125 142

So ch18 had the same number as the previous ch17, then with ch19 it dropped, ch20 was higher than 17/18, but then ch21-22 dropped even further. If there's any effect from asking for reviews, I'm not seeing it in the filtered reviews.

Oh, and not to be even more of a review whore or anything, but that thing where you write reviews begging the author to update? It totally works on me. (Coughs.)

Heh, but I guess that stopped working...