I think what Shootist is implying is that your own methodology shot yourself.
Not having Recycle Bins as a back up before final deletion of files is like not backing up your sensitive data to back up drives. It will lower storage room required for your system, but the risks are higher - someone with experience would understand the implications.
And now you have been stung by your own tweaks.
Call his reply a rude reply if you want, but facts are facts and permanently deleted files, recycle bin or not, do set a call on the O/S as mentioned to over write the space and recovery is not always possible. As learnt SSD's are not magnetic material. Backups are important at any level.
Costly lesson I guess if those images meant something to you.
The only thing necessary for the triumph of evil is for good men to do nothing - Edmund Burke