Observations & tips for managing GA groups

[I didn't find any past posts like this in the forums, and this is not a recruit thread.]

I may be creating a Steam group for SG, but before I actually create it, I wanted to get any tips that you have for managing a GA group for use on SG.
So let me start by noting my own observations of other groups on SG, and feel free to either correct me or add your own observations:

• Requirements for joining a group (SG level, RCV, ratios, etc) along with initiation period/activity (create X giveaways that meet Y and Z criteria) for new members can be a good way to vet them.
• Requiring periodic giving can help ensure gifters are more "active".
• Groups centered around Sent-to-Received # of games ratios (1:2, 1:1, etc) may be more likely to have lower value GAs than other giving criteria.
• Rules for gifting back upon winning (1:1 ratio, trains, etc) can lower the entries per GA because people entering think about "if I win game X, am I able or willing to gift game Y of mine that meets the criteria?"
• Putting review requirements on GA games (X% with Y review count) helps assure prospective and existing members of the quality of your group's giveaways.
• The more rules there are to join or stay with a group, the less people will want to join (for better or worse).
• Don't overuse group announcements because they can trigger notifications (See: Chat Settings/Options and Friend Activity » Friend Activity Settings page)
• Have more than one officer or mod who can accept new recruits or manage membership if the admin/owner is away for a while.
• A good group founder typically provides plenty and/or quality GAs on a regular basis.
• Some groups require people to be Steam friends with the founder if communication direct with a member is needed. Is it any less effective to use Group Chat's PM/DM capability to reach individual group members, aside from being able to setup user-specific notifications for a specific friend?

My goals for creating a group are:

• Have relatively simple rules for joining.
• Have simple criteria for staying in the group that uses stats from SG itself
• Have a unique way to manage membership that...
• Supports a balance between gifters wanting >5 entries and members wanting better odds of winning GAs.

So my potential future group would:

• Be private and openly accept people from a Group Recruitment thread.
• Be kick started by a bunch of GAs from me, and I'd regularly give to it.
• Have simple initial stats & initial GA requirement to join
• Have simple rules to stay based on "Value Difference" group stat, but removal of low value members would only happen if...
• Average Entries gets higher than some target Average Entries for the group, then group announcement is made, and a few weeks later some of the lowest Value Diff member(s) get purged.

Groups with a bunch of rules or outside have their place and help ensure a certain standard of activity or quality (I know I appreciate them), but I thought this might be a neat experiment that is unlike most or all other groups.

Any other feedback or suggestions here? I'm also open to group name suggestions.