As a non-expert reading this thread with some objective distance, the repeated recommendations that stand out are the importance of a distinctive (& searchable) name, and a graphical look/description that fights 'copycat' impressions. (Otherwise, the game never even gets a look from players or reviewers.) So maybe fresh eyes & new language/visual brainstorming would be more relevant than a financier?
You've already got one possible alternate name – "The Letters Game" – in your domain/twitter-handle, but I suspect something even more distinctive is possible. You might also tweak the icon and color scheme to convey more novelty compared to the famous category-leaders...