Thanks @danielsaori! Currently all bots (whether using my postpromoter software or drotto) treat STEEM and SBD bids the same, so a 1 SBD bid will get the same vote as a 1 STEEM bid despite the large difference in their value.

This is something I am aware of and intend to change in the postpromoter voting bot software, however it's a somewhat involved change to display that correctly on the bot tracker website, especially because not all bots that accept STEEM use the postpromoter software so there's a lot of different situations to take into account.

What I can say is that the "max profitable bid" calculations shown in the table and in the vote calculator account for the fact that SBD and STEEM are treated equally so often the max profitable bid in SBD will show 0 when it will be a large amount for STEEM. Hopefully people will look at this and not send SBD to those bots.