We could disguise it mid-sentence. Like changing ‘let me’ into ‘lemmy’ or use lemmy in lemon puns or something. (Dunno when anyone would use citrus puns tho).

Would look like a typo but with enough use, people might look it up and find out what lemmy is.
So long as Reddit doesn’t ban the use of that word.

I don't consider it self promotion to promote another site but even if you get banned, the main point is to destroy the original comment which would still be successful. Some of the comments would be so old mods probably wouldn't see them or take the time to remove them. If they aren't removed, it's free real estate.