@BTCforJoe: very good job, again! I was thinking this thread should find an official sponsor instead of users paying from their own pockets. "Joe's Signatureless Challenge (Round 4) - Sponsored by xxxxxxxx".
Thank you, very much! Although I would love the idea of an ongoing sponsor for this, I really don't mind putting up some cash money for this. I don't want to obligate any individual or business into having to commit to this on a weekly basis. If anyone wants to donate towards the cause, they are more than welcome to at any time, but I will be making a conscious effort not to put much focus on the sponsorship aspect of this challenge, as this should be a great opportunity for members to want to make a better forum experience, not a thread to showcase sponsors

Does that make sense?
I've given a shot to sponsoring this momenterily. If it turns out that this goes well, I may consider doing this on a permanent basis. Or at least doing the full cash prize permanently. $20 really isn't that much to spend on a good cleanup of the forum (though hopefully we can get a few extra newbies joining this campaign and improving their post quality - with the promise of getting a reward for good constructive posts every week).
Also, can I sponsor the next two weeks of payments? (with 0.01BTC, do I send this to your escrow address in the op or another address - just in case you don't want there to be too much in that address or can't recieve from bech32 addresses). This is a good campaign and hopefully it'll continue.
Wow, this would be great! You can send it to the escrow address in the top post. Thank you so much for your donation!
Funds sent!
I know it's a bech32 transaction but the amount that it cost me seems rediculously low in tx fees for one input/two outputs so if it stays unconfirmed (I used the within 25 blocks feature as I want to not clog the network with a transaction that isn't needed for another few days) then contact me and I'll bump the fee up a bit.
Who's nullius' alt also?