Of coure the more a person attends the encointer meetings, the strongest his proof of personhood is. This is part of the encointer protocol, and it is a correct thing.
But on the other hand, I doubt whether it is a good practice for the encointer community to incentivize persons capable to attend as many meetings as possible. This will mostly attract the unemployed, who will transform the encointer meetings to some kind of paid employement.
I would prefer the unemployed persons to spend their time searching for job or doing something productive for the community, or just enjoy their lives, rather than repeatable attend encointer meetings.
In my similar proposal back in 2017 (read about it in Dash, in Duniter or in Ucoin where it still remains the second most popular thread there!) the concurrent meetings were designed to occur once every 4 years (similar to the elections). And there was no memory of the previous meetings, the new meeting canceled the previous one and all the persons were anonymized again into the ballot box. This was due to the above explained reason, but I now understand your different perspective and point of view.
So you proposed meetings every 10 days, and I proposed meetings every 4 years. Maybe the correct number is somewhere in between. Maybe someday we should ask the encointer community members to vote the numbers about it.