it's not like there is a lot of activity in this section. the posts "on [this]a message board intended for discussion about radio communications" are not buried and lost among "post on this message board for Fire/EMS/PD Incidents."
FWIW, WIA now has over 500 members which includes tons of firebuffs, firefighters, law enforcement, numerous media outlets, and plain old scanner nerds. Secondary group called WIA2 is popular for sharing photos of incidents and discussing them and also has a nice following of members with good information. Both groups made the transition to Google groups a couple years back because no other groups service was reliable with timely messaging. Many members get breaking alerts sent to phones and pagers. Posting on the main group is limited to confirmed ongoing incidents but WIA2 is open to anything.