They just increase fragmentation and decrease amount of data written to disk. These are very traditional trade offs especially with database WAL and LSFS. They

They just increase fragmentation and decrease amount of data written to disk. These are very traditional trade offs especially with database WAL and LSFS. They didn't tell if it decreases read speed, because even if SSD 'seek times' are low, most drives read random blocks from disk much slower than linear data. Which means that fragmenting data especially in very small blocks might cause reduce the drive read speed.