Tegaki Rps and activity leveling

Well I’m kind of still ironing out some kinks in planning that one thing with the stuff, and I’ve got a few question for other Tegaki e rpers.

1. How do you feel about ‘leveling systems’? This is for example, Topaz Guardian, Infinity gimaca, PGMD, or Data which grant your characters strength/abilities based on activity or event participation.

2. If there is no leveling system in a group, but high god modding potential due to magic or other abilities, do you feel people will have enough common sense not to abuse this?

3. Do you like being rewarded for activity and event participation? Are you more likely to participate in an event if there is some incentive?