Uhhfff I’m so embarrassed I did not try that 🤦♀️ you are 100% right, it was the space. 
nostr:nprofile1qqsvf646uxlreajhhsv9tms9u6w7nuzeedaqty38z69cpwyhv89ufcqpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcvd6gmf has a space in his name.
I think the space might make it more difficult to locate his npub.
Discussion
The only way I can find the real Jack Mallers is by pasting npub. When I search, I find a fake account. nostr:npub1dmcd5wqd3yku05svp6xqk5gyywek4cgg0w3dk63tcu0rmjxnanns5xutjm is not the real JM
Thanks to nostr:npub1jmy8weweqzckna0amz7pn0uhhkxx693l7st23829ewmu43yvjsesfp6xcq I found out what we are doing wrong. Jacks name has a space in it, so when you search 🔍 ‘JackMallers’ he won’t come up but if you add a space ‘Jack Mallers’ you will find him.