Tenants threatening to sue EC and OC

The EC issued all residents with a Reminder Letter re various issues.  It did not ‘target’ anyone – just a nice general friendly reminder with a copy of the by-laws attached (noise, parking, etc) – it was okayed by the Strata Manager and placed on all residents doors.  One tenant has reacted very badly telling anyone who will listen that it is targeted at them and they are embarrassed.  Note they are whooping it up as they have been evicted making life miserable for everyone else and bringing innocent people doing the right thing into their problems.  They are threatening to sue the EC and the OC.  These letters in the past have just reminded people that what they are doing is affecting others in such close proximity – no-one has taken them this badly.  Would appreciate any views on the matter.  I’m in Sydney.