Well, I don't keep track of the exact figure as I don't make any dedicated effort to appease or woo any follower who has got a huge SP. But I see the regular decline in my busy upvotes. And when I see the decline, I guess that they have updated the figure. e.g. todayI received only 28 cent upvote i.e. 0.36% VW whereas until my previous post 2 days back I used to get about 80 cents worth of upvote.

You can always check the current details for their bot software at:
https://github.com/busyorg/busy-robot/blob/master/events/vote.js#L14-L15
It's:
MIN_VESTS = 20000000; // 2 Dolphins ~ 10 000 SP
MAX_VESTS = 500000000000; // 500 Whales ~ 250 000 000 SP

So even 500 SP aggregate mVest followership won't result in any upvote now. You can ask fabien for further details in case this is not enough.

I thinkyou like Steemit interface more because of your familiarity and comfort level because you have been using it for long. Since I'm quite new here, it was easier for me to switch. But I really don't know why you encountered any problem using markdown. Busy platform supports all markdown and like steemit, it's new version has a preview feature too. It does work almost similarly. Plus you get added features too. It also loads faster compared to Steemit but it's of concern for people like me who have got a slow connectivity. But yes, to each his own.

And I can understand that this less than $2 upvote is not motivating enough to switch the platform for you. So I don't think the post I mentioned above is for you. I had written it for newbies only.

P.S.:
You can use a small trick. Make your draft on Steemit and then copy-paste (with all your markdown) the same matter in busy, use a busy tag and post. I think, this much effort you can make to redeem the $2 busy offer 😜
(TBH, I started up with this trick only).