I wouldn't really recommend adding to the pool, there are no addtional rewards (other than swap fees), and in fact tokens in the pool are not counted for divs or curation list.
The exception to this might be, any fractional tokens you have, which are not counted for divs. This less than 1 token amount could earn fractional swap fees with no loss of daily divs.
Most LPs want people to get in, put in liquidity. I encourage them not to, maybe I'm weird but in our case we got 'corporate liquidity' from the main account, and there is not much incentive for users to get in, except perhaps marginally as mentioned above.
Thanks! I'm always happy to follow your advice!