Change 313601 had a related patch set uploaded (by MarcoAurelio):
Raise abusefilter condition limit for Meta-Wiki

https://gerrit.wikimedia.org/r/313601

A case to add Community-consensus-needed ?

I have my doubts that most communities care about how high their condition limit is, seeing as it has (almost) no effect on the actual project and is mostly a technical variable.

I think the same as @JEumerus. Maybe we can announce the change on Meta, but I'm more interested on how can this impact site performance, etc.

I think that some filters are needing a cleanup (https://www.mediawiki.org/wiki/Extension:AbuseFilter/Conditions)

For example we had a filter which has used rlike +20 times instead of simply one regex with multiple (|||).

Then we can evaluate if this is still needed.

By the way: Regarding the Community-consensus-needed question: I see no need, it does not affect the community like adding new tool or changing edit buttons.

Change 313601 merged by jenkins-bot:
Raise abusefilter condition limit for Meta-Wiki

https://gerrit.wikimedia.org/r/313601

Per Z398#7183 was handling this

[02:20] <grrrit-wm> (Merged) jenkins-bot: Raise abusefilter condition limit for Meta-Wiki [mediawiki-config] - https://gerrit.wikimedia.org/r/313601 (https://phabricator.wikimedia.org/T147063) (owner: MarcoAurelio)
[02:20] <addshore> arseny92: is this someting testable on mw1099?
[02:20] <yurik> i want to test it first
[02:20] <addshore> https://gerrit.wikimedia.org/r/313601 is now on mw1099
[02:21] <legoktm> addshore: wait
[02:22] <addshore> ack
[02:22] <legoktm> addshore: sorry, just saw the ticket. Has there been a performance discussion about meta-wiki's abuse filters? I don't think we should be raising the limit just because they asked for it
[02:23] <arseny92> looks like nothing exploded
[02:23] <legoktm> e.g. compare the analysis on https://phabricator.wikimedia.org/T132048 versus the meta-wiki ticket
[02:25] <legoktm> addshore: I'll comment on the ticket, but I don't think it should be raised right now.
[02:25] <addshore> There should be less of an impact for meta, but if we think we want to look at this more I can revert it for now
[02:25] <addshore> ack, will revert it for now.
[02:25] <grrrit-wm> (PS1) Addshore: Revert "Raise abusefilter condition limit for Meta-Wiki" [mediawiki-config] - https://gerrit.wikimedia.org/r/318014 
[02:25] <grrrit-wm> (CR) Addshore: [C: 2] Revert "Raise abusefilter condition limit for Meta-Wiki" [mediawiki-config] - https://gerrit.wikimedia.org/r/318014 (owner: Addshore)
[02:26] <grrrit-wm> (Merged) jenkins-bot: Revert "Raise abusefilter condition limit for Meta-Wiki" [mediawiki-config] - https://gerrit.wikimedia.org/r/318014 (owner: Addshore)
[02:26] <addshore> 1099 now has the revert too.

In T147063#2684122, @Steinsplitter wrote:

I think that some filters are needing a cleanup (https://www.mediawiki.org/wiki/Extension:AbuseFilter/Conditions)

For example we had a filter which has used rlike +20 times instead of simply one regex with multiple (|||).

Then we can evaluate if this is still needed.

By the way: Regarding the Community-consensus-needed question: I see no need, it does not affect the community like adding new tool or changing edit buttons.

I think this is absolutely right - I think before the limit is raised, the Meta-Wiki community needs to re-assess their filters, optimize them, and then come back with proof demonstrating that a higher limit is needed. Compare to the work Commons (and MatmaRex in particular) did before they raised the condition limit on T132048. I believe that should be done before we raise the limit. And that was why I asked @Addshore not to deploy the patch during SWAT today when I saw it go by in IRC.

One thing we can do is turn on the AF profiling temporarily to assist with debugging and identifying slow filters/code like was done for Commons as well.

That's okay. Maybe someone with good knowledge about abusefilter syntax can help us do so. If the AF profiling (links/explanation please?) will also help, then please enable it as well.