Audit Red Flags

My only income is SS and Roth conversions which I aim to keep below the threshold of needing to pay taxes. If I don't file taxes for the next several years or more (RMDs might eventually require tax payment) is this likely to trigger an audit? 

 

I know the chance of audits are small across the board, but would year after of no filing be more likely to trigger one.

 

I am debating whether or not to increase roth conversions a little so that I keep an active return record with the IRS, but don't want to if it is a non issue.