For fairness sake, the following is probably the more appropriate metric to track (among other things, because "no. of unconfirmed tx" is a raw value that needs to be seen in relation to the total no. of tx per day/hour/etc.)

Rising, but not critical yet.
To be clear, I'm very much not a Small Blockian. Just wanted to point out that, at the moment, the network still seems to be doing okay -- although it likely will reach a point where it
won't relatively soon.