In terms of distinguishing between HOLD and HODL, I think they are just like homonym that sounds alike but there meaning are not actually the same, though in the worldly perspective is somehow little confusing because most people will still believe that the both meaning are the same because it talks about hold but however is slightly different from my own understanding because the word HOLD is mostly use by people who are not into Bitcoin investment so is use differently but however in the case of HODL is a kind of technical terms that's only associated with Bitcoin investment and is regarded as HODLING, so actually I think the right term is HODL and not HOLD because the only one that has a connection with Bitcoin investment is HODL.