Behavior model (B=MAP) by B. J. Fogg may give you more ideas on how to improve the idea of downvoting drivers and persuade rude drivers to reduce negative behaviour.
In my opinion, as a driver, I will be more than depressed once received downvotes from random drivers around me. Rude driving from my observations is tightly related to emotional factors. Adding punishment in a form of down-voting will just add more tension. Would be better to have more motivation to drive carefully and more ability to achieve that. Basically, informative road signs and fake highway patrols give more ability, immediate response and motivation.
Techs: Fullstack, mostly Python (2.5+, 3+), Django, Flask, FastAPI, Pydantic, Pandas, Jupyter Notebooks, ReactJS, Docker, Linux. Experimenting with Rust for high-performance/big-data tasks. Used to be a tech lead, SCRUM master, early stage/small companies preferred. Interests in MVP, legacy code, startups. I play tennis, chess and poker.
If donations make a sensitive income flow, why switch to paid SaaS offering ever?
Keep your OpenSource as a non-profit and develop SaaS as another brand, separately.
Offer a premium proprietary product as a separate product under the same brand.
It's a self-endorsement without any contribution towards the discuss topic. I didn't want to flag the poster as they seem new, but this was explicitly against the community guidelines.
Imagine if everyone that had a blog, newsletter, rss reader, news aggregator site, or AI tool did this. What would that do for community and conversation? It would be miserable, we'd call it all spam.
Instead, I'd suggest making a root-level comment talking about the OP discussion and including their tool as part of their answer, as others have done. If they don't get visibility, so be it - that's how voting works.