Hi, @mariuszkarowski,
I would leave it as it is
Leaving it is pointless since it serves no purpose.
The 12-hour window was introduced to fight bots and farmers who only voted in the last few seconds to prevent people from detecting their operations and being subject to downvotes. Since rewards regulation do not exist on Blurt, then it would be pointless to have it. Removing it would allow users to vote freely for seven days. Communities who engage in manually curation can highly benefit from this since they will have 12 more hours to schedules their votes without having to pass contributions due to power availability.
With the new reward curve and removal of the 5-minute window, a farmer would be better off just upvoting his posts exactly after creating them.
What about farming in last 5 mins so post avoids been seen on trending/hot so the farmer is less likely to be spotted (not that there is much we can do anyway).
This would imply that a farmer cares about his reputation. If one starts to openly engage in farming to max his ROI, then nothing matters to him anymore. We even think that having them farm late is better, since we do not have to see them trending and pollute the landing page.
It is not ideal, but this something that we will have to live with since reward regulation is absent.
We actually remember a proposition that was suggested in the past that could help with farming a bit without reward regulation. Will make sure to present it when the time comes.