Hi,
It would be helpful to link to the clarification around parks.
There is also a difference between the criteria you meet to get something approved and put on the map and barriers to cross to get something removed from the map. In short there are more limited reasons to allow removal.
For new nominations
The key is you are nominating the park itself as the place and any sign or feature is acting as an anchor point. I personally dont think rules signs are great but if there is nothing else to anchor the park they are not unreasonable in my view to submit. It is then up to reviewers to decide if it’s acceptable.
A separate issue is about how many times can you nominate the park. This is a judgement call. There are no hard and fast rules. If the park already has nominations at entrances then it has been already nominated as a park.
Additional rules signs if they are spread across the park to act as reminders of the rules, would just be nominated for what they are rather than an anchor for the park. So in review I would not consider these to meet criteria and vote to reject.
Does this help explain the reasoning?