When share count is increased, that's by definition: dilution. Period.
HDUP filings say it diluted its shares by over 12% in 2021. You can believe the filings or not, up to you.
HDUP is also has an operating deficit. That means it goes deeper into debt approximately $16,500 every month (as of last quarter). Borrowing even MORE money to do a stock buyback would be an awful business decision for obvious reasons. Don't count on it ever happening before HDUP starts earning a profit.