I wasn't wrong about the chat on PeakD! Thankfully @mirafun helped me after I managed to find that I could get to the chat via chat.peakd.com. (The link is showing red in the preview. I have no idea why.)
At least part of the problem with alerts seems to be that it doesn't show trails I think, but there were a few other alerts that it didn't show. I'll try to get a list of examples together if it keeps happening.