The red mark I see here is the topic creation with a newbie account and replys with brand new accounts
Its a good initiative, but if you want to promote your spreadsheet it should come as a legit source.
Dunno about brand new, but I joined back in November 2017. Just found this on reddit where the owner promoted and thought it's good. But I get the doubts, crypto is fishy.
If that would be the case, you should have kept the legit source in the first place. You should have shared the reddit link alongside giving credits to the original creator. Thats how the community grows, share the love, share the credits, and the community will embrace you.