Someone engaged in intellectually and theologically bankrupt argent should refrain from accusing someone else of looking incredibly stupid. Jesus isn't Joshua. Jesus is never referred to as Joshua or Yashua in the Septuagint, nor in any ancient document.
Every author of the NT (except Luke) personally knew Jesus. Every author of the NT (except Luke) had a jewish background. Luke, himself, was a methodical Greek historian. Yet, not one of them calls Jesus anything other than Iesous, which for English speakers is anglicized as Jesus. So, it indeed looks incredibly stupid for anyone to call Jesus Yashua. And, I charge those people have doing so as having evil intent (they're butchering Jesus' name to pay homage to the synagogue of Satan).
(Also, if Jesus actually did go be a Hebrew name, of which there's no evidence, that name wouldn't necessarily be the most similar Hebrew name to Jesus. Jesus could be derived from an abbrivated name, otherwise modified.)
As for leaving out vowels in reference to God, I did check the other posters messages and found that he has done that with God. But, whether or not he does that, it's still a valid question, why would someone leave the O out of God but not leave the vowels out of Jesus or Yeshua? If they are paying homage to the synagogue of Satan, that inconsistency is explained.