On several occasions I have tried to send support tickets about this to them but each time their support is unavailable. This is the latest one I drafted:
Hi, I have noticed that your keyword suggestions in both the New and Legacy upload dialogs are possibly broken. Normally I find that the suggestions are reasonably accurate but I have been getting some very strange keyword suggestions, which seem like they are suggestions for some other file entirely. For example an animation I did of a pencil writing Back to School on a lined notepad gives me these suggested keywords: amazon, america, blink, bufo, bufonidae, crest, crested, ecuador, eye, forest, hop, ump, jungle, leaf, leap, margaritifer, neotropical, rainforest, rhinella, south, toad, tropical, warty, wink, burn