The post you are reporting:
In my opinion - which can be made substantial or not based on scientific facts - the moat walls are not in danger of collapsing, as they are of chalk, the reason being, the moats were cut into the chalk ground.
The brick work covering the chalk might - and indeed will - crumble in some areas, but this does not mean the chalk itself is falling away. Where the bricks come down (and I mean in those specific locations of the walls where this happens) it would be better to remove them altogether and leave the bare chalk. To keep coming back and pointing the brick work is far too expensive, we cannot afford it.
Should it so happen that even a section of chalk wall of the moats might be in risk of giving way, then one would have to consider partially filling that section of moat with with a layer of earth, but I am not too sure if there is any evidence that the actual chalk is crumbling away.
The Western Heights defences are mainly underground, so they are unlikely to "collapse".
But to go on repairing the whole former military complex is far too expensive, unjustified, and would not bring in any financial return from tourism.
Like it or not, by far the vast majority of people visiting Dover are attracted by the Castle, not the Napoleonic defences.
With hundreds of empty houses in Dover for sale or for rent, and rampant unemployment, how can we devise a credible plan to build hundreds more houses on Western Heights in order to keep going on repairing an underground and - to many - somewhat boring and out-of-date defence system, which every 10 years would need general repairs at continual massive expense?
Many of our local young people want work and a salary, we need factories and farms in the district of Dover, and fair employment chances, not hundreds and thousands of new houses for settlers to come over here and settle.
DDC has conjectured a plan to bring in money to local shops through mass settlement, and has abandoned or turned down any alternative planning to help the local people in general.
Paul Scotchie has clearly gone along with this plan, to build up the green areas of Dover with more housing so as to attract people into Dover's shops.