Raid Guild built Quadratic Lenster as a proof of concept stemming from an idea by Kevin Owocki - why couldn't a web3 social platform include a Quadratic Funding mechanism?

There were quite a few constraints at the time of inception as the Allo protocol and Lens v2 had not yet been announced, and our first iteration included a few hacks to make it all work proper. Our deadline was for EthCC 2023, where @owocki.lens and @stani.lens i took the main stage to announce a $10k matching round for the initial iteration.

We loved working with @owocki.lens , Supermodular, @lensprotocol, and @gitcoin.lens teams to be able to ship this in time and overall the alpha round was successful with the QF mechanism working as intended.

However, we encountered two major issues from this experiment - there was initially an exploit that was noticed by early users where malicious users or bots abused a loop in the allowance flow.

While we were fortunate to catch this early on, the fix to this initial exploit led us make a mistake when making the actual matching payouts once the round concluded.

This ended up leaving a few participants not getting paid appropriately from the matching funds, as well as a handful of gross overpayments. This was definitely our mistake, but we hope that this community and the participants of this experiment can be understanding and forgiving here. We reached out to two of the highest overpayments @punkess.lens @definn.lens and they were generous in understanding the situation when we reached out to ask if they would consider returning portions of the funds. This community is amazing!

We want to issue a formal apology to all affected by this - yes, this was an experiment and overall we want to make sure everyone who participated have a good experience and will participate in any future iterations! Our amends here were delayed due to summer travel and conferences, but we hope that we can make right and have taken the appropriate steps to get all participants paid appropriately.

polygonscan.com/tx/0x54872d2ecfa2d20e73a65ebc39e8fb80632d196f9998e1a5699a471fb8334308

Thank you all for your patience and participation here - we look forward to future rounds and implementations of Quadratic Lenster!

Payouts for #ethcc have been sent out! Many thanks to everyone who participated!

Stay tuned here for information on upcoming rounds and further developments with quadratic lenster. The future for all of us is looking bright.

[polygonscan.com/tx/0xbbf708f145598d9ea21249415b6dcc13475e25d0cd072c6862ba4451afd2970c](https://polygonscan.com/tx/0xbbf708f145598d9ea21249415b6dcc13475e25d0cd072c6862ba4451afd2970c](https://polygonscan.com/tx/0xbbf708f145598d9ea21249415b6dcc13475e25d0cd072c6862ba4451afd2970c))

Here is a link to our post mortem of the attack: [hackmd.io/@6dNOI9lFQYGC280d09lkqg/SJTkBtSc2](https://hackmd.io/@6dNOI9lFQYGC280d09lkqg/SJTkBtSc2](https://hackmd.io/@6dNOI9lFQYGC280d09lkqg/SJTkBtSc2))

We’ve launched a new round with the same #ethcc hashtag. When processing the voting data the old and new voting data will be merged, with the exception of the two malicious addresses.

If you are manually selecting a round, the correct round is ethcc round- 2.
However just using #ethcc will put you in the correct round.

We have all been extremely touched by the lens community's response to this. You have all been so compassionate and understanding. It's a beautiful thing. We hope to keep cranking up the vibes here with you until the whole world can't help but to join in!

<span className="hidden"> This post is included in the ethcc round- 2 round (0xfc68882a250f5c444f737b8e4ffbfa6ca769efcd) at quadraticlenster.xyz </span>

If you were affected by the recent exploit we deeply apologize for our oversight in allowing this to happen. The bug has been fixed, and reimbursements have been sent out. We hope to have a full fix deployed and to continue the round tomorrow morning.

Please verify that you have received your Wmatic back. If you were affected and didn't receive compensation please notify us here.

The post mortem will be published when the current round is continued.

Thank you for your patience and understanding,

The quadratic lenster team.

We have temporarily disabled tipping on our front end. please use [revoke.cash/](https://revoke.cash/](https://revoke.cash/)) to revoke any outstanding allowances to our round implementation contract (0xA2ae8421776035c398c22e143290697DA09d19D7). The round payouts will be unaffected by this change and a fix has been implemented. We have identified the affected users and will be sending out compensation.

A full breakdown will be coming shortly.

Thank you.