I was bored, so I did build a little script to check missing votes.
It is by far from perfect.
I wouldn't even say it is finished.
But it is good for 10 minutes of fun;)
Get all transfers to the bidbot. Look into the memo for a permlink
Get all votes from bidbot, remove that permlink from the list
What's leftover?
Print percentage of "missed votes" for bot
Counting refunded money.
Yes, sent back money will not be counted and is a missed vote.
Not sure, how to handle this right now, still investigating.
Work in progress
This is the data from the last 7 days:
I guess 
And 
| Bot | "Missed Votes" |
|---|---|
 @adriatik | 2 % |
 @aksdwi | 6 % |
 @allaz | 5 % |
 @appreciator | 6 % |
 @bearwards | 11 % |
 @bid4joy | 5 % |
 @boomerang | 12 % |
 @booster | 29 % |
 @boostme | 0 % |
 @buildawhale | 14 % |
 @discordia | 8 % |
 @hellowhale | 5 % |
 @ipromote | 14 % |
 @jerrybanfield | 10 % |
 @kittybot | 5 % |
 @levitation | 3 % |
 @lovejuice | 6 % |
 @mercurybot | 7 % |
 @microbot | 10 % |
 @minnowhelper | 7 % |
 @minnowvotes | 7 % |
 @moneymatchgaming | 3 % |
 @mrswhale | 4 % |
 @msp-bidbot | 6 % |
 @nado.bot | 5 % |
 @nanobot | 6 % |
| @nettybot | 100 % |
 @postpromoter | 6 % |
 @pushup | 6 % |
 @redlambo | 7 % |
 @seakraken | 4 % |
 @shares | 7 % |
 @sleeplesswhale | 8 % |
 @smartsteem | 13 % |
 @sneaky-ninja | 8 % |
 @steembloggers | 4 % |
 @steemdiffuser | 1 % |
 @upgoater | 4 % |
 @upme | 13 % |
 @upmewhale | 7 % |
 @upmyvote | 14 % |
 @upyou | 5 % |
 @votebuster | 7 % |
 @voter | 3 % |
 @voterunner | 4 % |
| @yourwhale | 61 % |
