Mark the synthesizers in WvW so siege cannot be placed on them.

Per the title, entered WvW and waypointed to the keep and noticed that some troll had built trebs over all of the synthesizers, both making gathering from them more difficult and wasting keep supply. Would it be possible to flag the synthesizers to prevent placement of siege?

Yes, please do. We had a few do that to Blue keep in EBG too. It was so stupid, but for a time until people just stopped trying for the nodes, kept that siege refreshed. Now, when most see that they generally just avoid the node all together, which isn't why the synthesizer nodes were put in the game for.