Actually... this is the first time that you've clarified what you mean by "vote-buying".

"Logic" tells me that vote-buying means I'm buying votes (i.e. sending HIVE/HBD in exchange for an upvote - old school bid-bot style). @PlayDice does not buy votes.

OK... so the problem isn't that I'm buying votes, the problem is that I'm "begging" for votes and then giving half of it away? How is that a problem? Would begging for votes and giving NONE of it away be better? Surely THAT doesn't make logical sense... So I'm going to assume your problem is that I'm only giving half away instead of all of it? Now why is THAT a problem?

FWIW / Side note:

• @PlayDice self votes and does not earn ANY of the liquid rewards - i.e. is not eligible for winning, i.e. just fills up the pool for other players.
• @BraaiBoy & @IncuBot upvotes with way more than the minimum required - i.e. fills up the pool for other players.
• I spent my own HIVE on SBI shares, and none of the SBI bots earn any of the liquid rewards - i.e. just fills up the pool for other players.
• I (used to have) real world sponsors giving me fiat which I used to buy HIVE and bought delegations which increased @BraaiBoy's upvote value - i.e. again filling up the pool for other players. Unfortunately that came to a grinding halt with the economic shitshow caused by Covid lockdown restrictions, but if/when that's over and these businesses have recovered then I'll most probably be able to get them onboard for that again.
  ... so YES, I COULD PROBABLY claim that I've invested & given away MORE than the HP I've accumulated... But I'm not, because I'm not keeping track of that, and none of these extra votes are guaranteed forever.

Anyway... so back to the blacklisting dispute:
First off, I'm calling it YOUR problem and not a community problem as you claim, since I've had several conversations with several tribe owners who DON'T have a problem with it, and "received their blessing" for posting in their tribes. Also had several conversations with several "flag/downvote groups" who, while they don't explicitly APPROVE, they didn't disapprove (as long as I don't actually buy votes e.g. old-school bid-bots).

HIVE is full of daily/weekly contests giving away their liquid rewards, and/or XYZ prize in exchange for an upvote and/or reblog. The "community" has never had a problem with any of these either, and a quick glance at 1 or 2 of these aren't attracting any downvotes/blacklisting from you either. So it's not that either.

So is your problem with @PlayDice maybe because it's automated? Surely not that either because HIVE is also full of automated posts not on your blacklist.

Or is your problem maybe with the frequency of @PlayDice's posts? Would 4, 3 or 2... maybe even just 1 post per day meet with your approval and get @PlayDice removed from the blacklist?
FWIW: The reason for posting every 3.5 hours is so that no matter where in the world you are or what time you visit @PlayDice, there will always be 2-3 [OPEN] games... Games are only [OPEN] for votes for 12 hours.