I couldn't agree more. I think sometimes the hardest part about submitting a tip is knowing when the information you have is relevant. I really thought the information I submitted was relevant. After submitting the same tip 5 times over 2 years I guess LE did not think it was relevant. Hopefully the right tip is in the nearly 50,00o they have already received in this case.
I mentioned the Holly Piirainen child abduction/murder case here within the last couple of days - the detective investigating her case wrote that the name of the person who is eventually found to be responsible comes up in the first week of the investigation in 78% of cases. So one could hope that either in the first tidal wave of tips or in the early stage of the investigation, the name of the Delphi killer was somehow in the mix.
What you have to also hope for is that there isn't some extenuating circumstance that causes the right name or tip to be rejected. The cold case abduction/murder of Kelly Ann Prosser in Columbus, Ohio was solved within the last year using genetic genealogy but the name of her murderer was actually tipped early in the investigation. Unfortunately his name was spelled wrong in the case files (either the tipster didn't know his exact name or a mistake was made). So he was never seriously considered as a person of interest even though he had child sexual assault priors. If something like this occurred in the Delphi case, let's hope a review can uncover it.