Peak population is presumably related to peak globalling times overall, but Cyrene has so few people on it that just 1 person on a globalling mob will probably make their own little peak...
This is why I just suggest making a few calls out to "visit the market on the hour for 5 mins" if you want to try and make new contacts. Throw it up in chat at various tps with green dots on radar as low-level marketing, plus on forums etc.
This small step will improve the chances of meeting people immensely (factor of 12 over randomly chosen 5 minute periods
)
On locations:
the area just south of the Centre of Janus has a big open space plus a building with all terminals. The tp is still reasonably close. But maybe it is good to spread avatars out a little bit while still on radar for anti-lag.
Cyrene Port is directly below where quads come in from space, yes. I imagine many people simply jump out and die during planet loading to save time having to 'land', then go and pick up their quad from where it falls. I have no idea how lag would additionally affect that.... It wouldn't seem a natural place to meet other than that in my opinion.
Craggs Point West now it has been upgraded has a nice area, but no auction or crafting machine...
A.R.C HQ just seems too cramped for me - but the landing pads are at least big enough for quads now...
As things are now, I'd select the square just over the bridge south of Centre of Janus.
Also: if Cyrene people meet somewhere, then traders from elsewhere will go there too. With Centre of Janus they may even fly their quads down and land there directly too - it's very close.