The implementation of fees for 3route is a complex issue, as it can have both positive and negative implications. On the one hand, it could potentially improve liquidity for swaps by aggregation, thus saving users money. On the other hand, it could create an additional cost for users, which could be seen as a deterrent. From what Vladimir has said, it doesn't appear that they are planning to add a fee on 3route, so it seems that they are taking the public good approach, where they are providing the service free of charge. This approach is beneficial to users, as it allows them to access the service without any additional cost. Ultimately, the decision to implement fees or not will depend on the needs of the users and the goals of the service.
