What do you mean, "improve groups further"??? You totally screwed it up!
Return to previous format
This format is like a puzzle with 5,000 pieces and only 100 might fit. A puzzle like that should be shot out and a new puzzle that is complete and with all parts that fit together take its' place. This Neo shows day after day that it will never be put together so it fits nicely forming a functional format. Yes, every format has issues and that is why you have "experienced software engineers" to easily resolve defects in a timely manner. Isn't there on brain functioning that can see that this is a disaster that just gets worse by the day? Classic is still there. Why don't you roll Classic back out so we have something functional to run our lists on, while you start from scratch creating a new format with the proper testing right up to offering groups to be a part of the beta testing until the defects are located and fixed, then roll it out to all the members with a notice prior to the roll out. I am sure I am beating a dead horse and this is a waste of time as it seems that you want Yahoo groups to crash and be gone - Keep this up and it won't be long before it is gone as new members are way down, members and groups are leaving, advertisers are leaving for other reliable and well run groups where they know their ads will be seen and more.