1-minute donations

[KnorpelSenf]

The current situation is that a single account is shared by all non-contributor users. This leads to the 25 minutes being consumed after the first few hours of the 24-hour timeframe. As a result, most new users are not able to perform a single conversion without becoming a contributor first. It is desirable to provide at least a few small conversions to new users.

One way to improve the situation would be to pick the API key of another user that has not used any of her 25 conversion minutes and "donate" it to new users. We need to make sure that this does not take away minutes from users who really need 25 and not just 24 minutes. Some ideas are these:

• The donation could be opt-in
• The donation could be opt-out
• The donation comes only from users who did not use their account within the last 30 days. The would require evaluating tracking data.

Some restrictions to this have to be done in either case.

• Only small files may be converted so max. a single minute is consumed.
• It should only be possible a few times before always falling back to the dev account and not relying on donations.
• The 25 minutes of the dev account should be used before requiring a donation from another user.

[Martinligabue]

I think it might be better and maybe easier to make the user decide how much to donate of their minutes, when they're opting in. this would also solve the one-minute conversion, for smaller files it would be used the time from users that donated less minutes, and bigger files would use the time from who donated more minutes. the third idea I think it would be the less optimal, since some people just need the bot sporadically, but for longer time