Sell walls are sometimes fake walls, whales are doing that so people would tend to panic buy or panic sell. But if you take risks then by all means buy them at its current price or value right now and hold them but if you are one of those weak traders, I would suggest you to wait for DGB to dump and buy them at its lowest value.
I agree , some investors try to create panic with sell walls , better to hold for long term and don't fall in the trap