Admin Search User IP 1.0.0 < prefer the built in feature <- My staff come from vBulletin so this addon will save them some time... keeping.
Clickable Rows 2.0.0 < I think this can be done with manual edit <- Yes, but since there are two templates and one js file... I'll probably leave it.
Custom Footer customFooter < Modify it yourself, not by an addon <- Looks confusing for other admins to modify the content... will leave it for now.
Developer Kit 1.1 < Are you a xenforo developer/programmer? <- Yes, but not sure why it slipped in my production site.
Digital Point Spy 1.0.5 < Could be resource hog <- No additional queries detected... turning it off doesn't really slow performance
Find users sharing the same IP 0.0.2 < Use the built in feature <- This is built-in? Where? (If you mean ACP I need it to be readily accessible from postbit)
Floating Login by SolidMean 1.0.0 < Can be done by adding 2 lines of css code on extra.css <- How? The code shows that a whole template is needed but uninstalled anyway.
Separate Sticky and Normal Threads 1.0 < Can be done with template edits. <- Read the code, not sure how.
Signature Restriction 1.2.1 < redundant, you have FreddysHouse Tools: Signature Once 1.2.0 already <- Not redundant, Signature Restrictions adds permissions
[dc] Smiley Manager 1.1.0 < redundant, you have Smilie Importer by Waindigo 1.0.1 already <- Not redundant, Smiley Manager adds Smiley Categories
And many more addon's to point.