Will my DTV be nullified if I enter Thailand after the 90-day period?

The user is concerned about the validity of their DTV visa after delaying their entry into Thailand until late August, more than 90 days after the visa was issued. Most comments suggest that since it is a five-year multiple entry visa, the user should be fine and can enter Thailand at any time within those five years. However, some caution was advised regarding the potential for cancellation if not used within the initial three-month period, and it was recommended to check directly with the issuing authority for specific guidance.