As far as there is no impact on return filling but there is definitely effect on 26AS after this 26 AS is more clear because it's shows your big transaction which you made during the particular year.
No there is no adverse effects. It is for our reference purposes. It is only to help us as a reminder to check if the transaction and the income there off is relating to use and considered the effect of same while filing return.
Many people ignore/forget important transactions done by them and consequently leads to scrutiny proceedings, which is decreased by this, because we in advance know which transaction are reported ect..
So, ultimately this going to be beneficial for taxpayer