Hi Guys: All of you are correct. The previous LongIslandRR group was not moderated and went SPam land. I have asked on/off for years to have the owner do something; totally ignored, thus as stated above a failure.
The urbanmodeling_SIG group I have runs well, the Ry-ops-industrialSIG and ldsig are very successful (not mine).
Email delivery options are:
No emails, individuals, and daily digest.
I find for groups with low volume or my group individual email works. As DTAir stated the Daily digest can get out of hand for large posting groups like the 13 messages today from: Steam era freight car discussion group. The time period covered will be from 1900-1960.
But go visit it.
http://groups.yahoo.com/group/STMFC/ Great stuff..
I am moderating the LongIslandRailroad group and rather then the sappy usual Hi Welcome Happy

BS start up messages I just posted two messages one on the West Chemical car and the other on the LIRR Tugs along with picture albums to "seed" the group that it was not going to be a nonsense group like the other.
It's only a few days old. I started it to see if other non-forum folks have info to share. Just a different venue. We shall see.