A dropped tell was kept in the same bounded send history (KeptSends)
that the conditions' and notify's cap counts sends from. A flood of
drops could push real, still-recent sends out of that bounded history,
undercounting sentLastHour and letting the conditions' cap stop
holding. A dropped tell is still said once an hour in the log and
named in Tell's own "dropped" answer; it is simply never recorded into
that shared history any more.
jochen
aa62de2e78