However, in general you should just ignore your activity because the only time it matters is to make you standout from a lookalike username that may be scamming, which should happen naturally or to meet a quota for signature spamming (coincidentally the "confused" users here are participating in signature campaigns)
There are a few other benefits, like reduced time between pms and posting. Those can be useful. But you're right that once you get out of the very junior levels it doesn't matter very much.