I have to say, part of me misses the days where SIC shouts were cooked into the PDS script.
Hearing random twiggy characters and corpie suits screaming about endoprine on SIC was -hilarious-!
One subtle tweak I could potentially see doing on the short-term is upping the verbal intensity of PDS attacks. Like, we see someone having a fit, I would think that we should act appropriate to the situation, but I've seen grand mal's get handwaved as having the flu or something, which is cheezy central.
Instead, if the messaging to the location read something like: "%N's eyes suddenly roll back into their skull, and their jaw clenches hard. %p vocalizes uncontrolled grunting as their body rapidly contorts into excruciatingly painful-looking joint-locked poses, and they heave and shake on the floor violently. %S foams at the mouth as the fit intensifies for several long moments, until it starts to pass..."
In such a situation, the observers in the area should have absolutely no ambiguity as to the severity of the attack, and attempts to hand-wave it by the character afterwards should seriously call into question their mental state and sanity (as it should, with PDS.)