Look like increasing bloom filter size to 410003 is not enough for big old nodes:
Mar 30 05:12:07 50 storagenode[11975]: 2024-03-30T05:12:07Z INFO lazyfilewalker.gc-filewalker starting subprocess {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S"}
Mar 30 05:12:07 50 storagenode[11975]: 2024-03-30T05:12:07Z INFO lazyfilewalker.gc-filewalker subprocess started {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S"}
Mar 30 05:12:07 50 storagenode[11975]: 2024-03-30T05:12:07Z INFO lazyfilewalker.gc-filewalker.subprocess Database started {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S", "Process": "storagenode"}
Mar 30 05:12:07 50 storagenode[11975]: 2024-03-30T05:12:07Z INFO lazyfilewalker.gc-filewalker.subprocess gc-filewalker started {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S", "Process": "storagenode", "createdBefore": "2024-03-20T17:59:59Z", "bloomFilterSize": 4100003}
Mar 30 05:30:26 50 storagenode[11975]: 2024-03-30T05:30:26Z INFO lazyfilewalker.gc-filewalker.subprocess gc-filewalker completed {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S", "Process": "storagenode", "piecesCount": 58447240, "piecesSkippedCount": 0}
Mar 30 05:30:27 50 storagenode[11975]: 2024-03-30T05:30:27Z INFO lazyfilewalker.gc-filewalker subprocess finished successfully {"Process": "storagenode", "satelliteID": "12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S"}
Mar 31 04:00:10 50 storagenode[11975]: 2024-03-31T04:00:10Z INFO lazyfilewalker.gc-filewalker starting subprocess {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs"}
Mar 31 04:00:10 50 storagenode[11975]: 2024-03-31T04:00:10Z INFO lazyfilewalker.gc-filewalker subprocess started {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs"}
Mar 31 04:00:10 50 storagenode[11975]: 2024-03-31T04:00:10Z INFO lazyfilewalker.gc-filewalker.subprocess Database started {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs", "Process": "storagenode"}
Mar 31 04:00:10 50 storagenode[11975]: 2024-03-31T04:00:10Z INFO lazyfilewalker.gc-filewalker.subprocess gc-filewalker started {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs", "Process": "storagenode", "createdBefore": "2024-03-26T17:59:59Z", "bloomFilterSize": 4100003}
Mar 31 04:07:19 50 storagenode[11975]: 2024-03-31T04:07:19Z INFO lazyfilewalker.gc-filewalker.subprocess gc-filewalker completed {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs", "Process": "storagenode", "piecesCount": 10097877, "piecesSkippedCount": 0}
Mar 31 04:07:20 50 storagenode[11975]: 2024-03-31T04:07:20Z INFO lazyfilewalker.gc-filewalker subprocess finished successfully {"Process": "storagenode", "satelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs"}
For now delta between paid and unpaid storage only on one node is about 5Tb 
Total count of pieces stored on this node:
find /opt/storj/data/storage/blobs/ -type f -name "*.sj1" | wc -l
76451028