I believe there was already a thread on this, but I cannot seem to find it. I just want to reiterate that alerts do not always show up. I haven't been able to figure out exactly when or why it skips some notifications, but I know that it does. The ones I usually notice are feedback notifications. It's possible that it is inconsistent only with regard to those. Last night I made a post that received 5 items of feedback overnight. I only had a single alert today about that post. I do believe they're being logged in my profile, I just don't think the alerts are showing up. It's not a major deal, but definitely appears to be a bug. I definitely wouldn't want to miss alerts about replies to my posts, but as I mentioned, I haven't seen a case where those aren't sent. Let me know if you'd like more data to track the issue.