Unimportant tables in db

[NimaTarlani]

Is it possible to delete the "changes" and "stats" tables from the database?
Because it has increased the amount of data and I feel that it can be deleted every week
Does this cause a problem?

[alireza0]

Stats table is the base of traffic report's graph in Inbound,Outbound and Client pages. It could be limited in settings or disabled by setting Traffic Maximum Age to 0.

Changes will be displayed in the future for reporting when changes happened. And also when multi admin feature is added, we need it for sure. It does not contain a lot of data ( in comparison with stats ), but could be handled in the future.

In the plan for backup/restore is it reserved to have choice to backup/restore these tables or not.