I think Dagenham fans think it's a bit of a PR move from Still, but he was due to retire next season.
With Dagenham's financial troubles (need £150k by end of June), Still has made out that he's sacrificed his wage (rumoured to be north of £100k a year) to help them out.
Daggers fans seem to think that he's using that as an excuse because he knew of Barnet's interest and could've helped them get some compensation for him, even if it was a small-ish amount.