I replied to his post from the 22nd of last month, I saw it as well. He said he liked the idea of Elemental GEOs and the future of the project. My quote of his post was also deleted, absolutely bizarre as I've never seen it happen on this thread in the past few years.
On an unmoderated thread like this, the only people other than you who can delete your post are bitcointalk moderators, and they would send you a message saying "We had to delete your post. Please stop violating policies. etc"
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There are many ways to fix the geospoofing issue which seems to be holding GEO down.
One way which would partially fix that and several other issues at once is adding the option to require a password to collect a coin from the map. A group which wants to use GEO for something, a promotional event or whatever, could distribute the password to their members only, so only they could collect the coins they drop.
A step better would be to just attach an optional question and answer field to each coin on the map.
Question "Standing at the correct coordinates, look west 20 meters. There is a mailbox. What are the first three letters on the mailbox?"
Or "Southwest 10 meters is a large tree. What kind of tree?"
Or whatever
Another option which will become available if GEO picks up enough is to rent space on satellites and require that a person's wallets ping the correct satellites. Satellite launch companies are proliferating rapidly, and some shared services are available on some satellite systems. It would probably cost a few hundred thousand usd to cover most populated areas now, but soon it will be a lot cheaper. When the cost to deploy a proprietary system to verify a phones coordinates publicly is very affordable then devs can sell enough to pay for that. It would be a step away from decentralization initially, but when the cost to verify is very low, probably within a few years, any person or group can add their own anti geospoofing module or even their own hard fork.
There are lots of other fixes too.
