Like I said...

As the situation currently stands, the "abacus" can be self-used, or among friends, in static groups and FCs, and discussed off-game.
And it CANNOT be brought up in PF and DF groups because of the taboo.

This is in fact the best of both worlds. People can use it for self-improvement, people can discuss it in closed environments, all is well in the world.

Now, to take down the taboo and introduce the numbers to be freely talked about in shout, linkshells, PF and DF groups? THAT'S what would be a downside. That's asking SPECIFICALLY for the negative side of the tool, and no, we don't need that in our community.

Keep as it is, it's quite good the way it is right now.